chore: resolve conflicts and merge upstream

83 files changed, 2338 insertions, 513 deletions

diff --git a/launcher/ui/MainWindow.cpp b/launcher/ui/MainWindow.cpp
index 7b758e05..47c469e9 100644
--- a/launcher/ui/MainWindow.cpp
+++ b/launcher/ui/MainWindow.cpp
@@ -273,8 +273,8 @@ public:
     {
         mainToolBar = TranslatedToolbar(MainWindow);
         mainToolBar->setObjectName(QStringLiteral("mainToolBar"));
-        mainToolBar->setMovable(false);
-        mainToolBar->setAllowedAreas(Qt::TopToolBarArea);
+        mainToolBar->setMovable(true);
+        mainToolBar->setAllowedAreas(Qt::TopToolBarArea | Qt::BottomToolBarArea);
         mainToolBar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
         mainToolBar->setFloatable(false);
         mainToolBar.setWindowTitleId(QT_TRANSLATE_NOOP("MainWindow", "Main Toolbar"));
@@ -347,7 +347,7 @@ public:
             actionMATRIX = TranslatedAction(MainWindow);
             actionMATRIX->setObjectName(QStringLiteral("actionMATRIX"));
             actionMATRIX->setIcon(APPLICATION->getThemedIcon("matrix"));
-            actionMATRIX.setTextId(QT_TRANSLATE_NOOP("MainWindow", "Matrix"));
+            actionMATRIX.setTextId(QT_TRANSLATE_NOOP("MainWindow", "Matrix space"));
             actionMATRIX.setTooltipId(QT_TRANSLATE_NOOP("MainWindow", "Open %1 Matrix space"));
             all_actions.append(&actionMATRIX);
             helpMenu->addAction(actionMATRIX);
@@ -357,7 +357,7 @@ public:
             actionDISCORD = TranslatedAction(MainWindow);
             actionDISCORD->setObjectName(QStringLiteral("actionDISCORD"));
             actionDISCORD->setIcon(APPLICATION->getThemedIcon("discord"));
-            actionDISCORD.setTextId(QT_TRANSLATE_NOOP("MainWindow", "Discord"));
+            actionDISCORD.setTextId(QT_TRANSLATE_NOOP("MainWindow", "Discord guild"));
             actionDISCORD.setTooltipId(QT_TRANSLATE_NOOP("MainWindow", "Open %1 Discord guild."));
             all_actions.append(&actionDISCORD);
             helpMenu->addAction(actionDISCORD);
@@ -367,7 +367,7 @@ public:
             actionREDDIT = TranslatedAction(MainWindow);
             actionREDDIT->setObjectName(QStringLiteral("actionREDDIT"));
             actionREDDIT->setIcon(APPLICATION->getThemedIcon("reddit-alien"));
-            actionREDDIT.setTextId(QT_TRANSLATE_NOOP("MainWindow", "Reddit"));
+            actionREDDIT.setTextId(QT_TRANSLATE_NOOP("MainWindow", "Subreddit"));
             actionREDDIT.setTooltipId(QT_TRANSLATE_NOOP("MainWindow", "Open %1 subreddit."));
             all_actions.append(&actionREDDIT);
             helpMenu->addAction(actionREDDIT);
@@ -442,8 +442,8 @@ public:
     {
         newsToolBar = TranslatedToolbar(MainWindow);
         newsToolBar->setObjectName(QStringLiteral("newsToolBar"));
-        newsToolBar->setMovable(false);
-        newsToolBar->setAllowedAreas(Qt::BottomToolBarArea);
+        newsToolBar->setMovable(true);
+        newsToolBar->setAllowedAreas(Qt::TopToolBarArea | Qt::BottomToolBarArea);
         newsToolBar->setIconSize(QSize(16, 16));
         newsToolBar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
         newsToolBar->setFloatable(false);
@@ -467,6 +467,7 @@ public:
         instanceToolBar->setObjectName(QStringLiteral("instanceToolBar"));
         // disabled until we have an instance selected
         instanceToolBar->setEnabled(false);
+        instanceToolBar->setMovable(true);
         instanceToolBar->setAllowedAreas(Qt::LeftToolBarArea | Qt::RightToolBarArea);
         instanceToolBar->setToolButtonStyle(Qt::ToolButtonTextOnly);
         instanceToolBar->setFloatable(false);
@@ -565,7 +566,7 @@ public:
         actionViewSelectedMCFolder = TranslatedAction(MainWindow);
         actionViewSelectedMCFolder->setObjectName(QStringLiteral("actionViewSelectedMCFolder"));
         actionViewSelectedMCFolder.setTextId(QT_TRANSLATE_NOOP("MainWindow", "Minecraft Folder"));
-        actionViewSelectedMCFolder.setTooltipId(QT_TRANSLATE_NOOP("MainWindow", "Open the selected instance's minecraft folder in a file browser."));
+        actionViewSelectedMCFolder.setTooltipId(QT_TRANSLATE_NOOP("MainWindow", "Open the selected instance's Minecraft folder in a file browser."));
         all_actions.append(&actionViewSelectedMCFolder);
         instanceToolBar->addAction(actionViewSelectedMCFolder);
 
@@ -603,7 +604,7 @@ public:
 
         actionDeleteInstance = TranslatedAction(MainWindow);
         actionDeleteInstance->setObjectName(QStringLiteral("actionDeleteInstance"));
-        actionDeleteInstance.setTextId(QT_TRANSLATE_NOOP("MainWindow", "Delete"));
+        actionDeleteInstance.setTextId(QT_TRANSLATE_NOOP("MainWindow", "Delete Instance"));
         actionDeleteInstance.setTooltipId(QT_TRANSLATE_NOOP("MainWindow", "Delete the selected instance."));
         all_actions.append(&actionDeleteInstance);
         instanceToolBar->addAction(actionDeleteInstance);
@@ -1567,7 +1568,7 @@ void MainWindow::deleteGroup()
     QString groupName = map["group"].toString();
     if(!groupName.isEmpty())
     {
-        auto reply = QMessageBox::question(this, tr("Delete group"), tr("Are you sure you want to delete the group %1")
+        auto reply = QMessageBox::question(this, tr("Delete group"), tr("Are you sure you want to delete the group %1?")
             .arg(groupName), QMessageBox::Yes | QMessageBox::No);
         if(reply == QMessageBox::Yes)
         {
diff --git a/launcher/ui/dialogs/ExportInstanceDialog.cpp b/launcher/ui/dialogs/ExportInstanceDialog.cpp
index f3bf7abe..5fac1015 100644
--- a/launcher/ui/dialogs/ExportInstanceDialog.cpp
+++ b/launcher/ui/dialogs/ExportInstanceDialog.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "ExportInstanceDialog.h"
diff --git a/launcher/ui/dialogs/MSALoginDialog.cpp b/launcher/ui/dialogs/MSALoginDialog.cpp
index 174ad46c..b11b6980 100644
--- a/launcher/ui/dialogs/MSALoginDialog.cpp
+++ b/launcher/ui/dialogs/MSALoginDialog.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "MSALoginDialog.h"
diff --git a/launcher/ui/dialogs/NewInstanceDialog.ui b/launcher/ui/dialogs/NewInstanceDialog.ui
index 7fb19ff5..8ca0b786 100644
--- a/launcher/ui/dialogs/NewInstanceDialog.ui
+++ b/launcher/ui/dialogs/NewInstanceDialog.ui
@@ -44,7 +44,11 @@
       </widget>
      </item>
      <item row="0" column="2">
-      <widget class="QLineEdit" name="instNameTextBox"/>
+      <widget class="QLineEdit" name="instNameTextBox">
+       <property name="maxLength">
+        <number>128</number>
+       </property>
+      </widget>
      </item>
      <item row="0" column="1">
       <widget class="QLabel" name="nameLabel">
diff --git a/launcher/ui/dialogs/OfflineLoginDialog.cpp b/launcher/ui/dialogs/OfflineLoginDialog.cpp
index 345ed40a..4f3d8be4 100644
--- a/launcher/ui/dialogs/OfflineLoginDialog.cpp
+++ b/launcher/ui/dialogs/OfflineLoginDialog.cpp
@@ -42,6 +42,15 @@ void OfflineLoginDialog::setUserInputsEnabled(bool enable)
     ui->buttonBox->setEnabled(enable);
 }
 
+void OfflineLoginDialog::on_allowLongUsernames_stateChanged(int value)
+{
+    if (value == Qt::Checked) {
+        ui->userTextBox->setMaxLength(INT_MAX);
+    } else {
+        ui->userTextBox->setMaxLength(16);
+    }
+}
+
 // Enable the OK button only when the textbox contains something.
 void OfflineLoginDialog::on_userTextBox_textEdited(const QString &newText)
 {
diff --git a/launcher/ui/dialogs/OfflineLoginDialog.h b/launcher/ui/dialogs/OfflineLoginDialog.h
index 5e608379..fdb3d91f 100644
--- a/launcher/ui/dialogs/OfflineLoginDialog.h
+++ b/launcher/ui/dialogs/OfflineLoginDialog.h
@@ -35,6 +35,7 @@ slots:
     void onTaskProgress(qint64 current, qint64 total);
 
     void on_userTextBox_textEdited(const QString &newText);
+    void on_allowLongUsernames_stateChanged(int value);
 
 private:
     Ui::OfflineLoginDialog *ui;
diff --git a/launcher/ui/dialogs/OfflineLoginDialog.ui b/launcher/ui/dialogs/OfflineLoginDialog.ui
index d8964a2e..4633cbe3 100644
--- a/launcher/ui/dialogs/OfflineLoginDialog.ui
+++ b/launcher/ui/dialogs/OfflineLoginDialog.ui
@@ -35,12 +35,25 @@
    </item>
    <item>
     <widget class="QLineEdit" name="userTextBox">
+     <property name="maxLength">
+      <number>16</number>
+     </property>
      <property name="placeholderText">
       <string>Username</string>
      </property>
     </widget>
    </item>
    <item>
+    <widget class="QCheckBox" name="allowLongUsernames">
+     <property name="toolTip">
+      <string>Usernames longer than 16 characters cannot be used for LAN games or offline-mode servers.</string>
+     </property>
+     <property name="text">
+      <string>Allow long usernames</string>
+     </property>
+    </widget>
+   </item>
+   <item>
     <widget class="QProgressBar" name="progressBar">
      <property name="value">
       <number>69</number>
diff --git a/launcher/ui/instanceview/InstanceDelegate.cpp b/launcher/ui/instanceview/InstanceDelegate.cpp
index 3c4ca63f..22ff78cd 100644
--- a/launcher/ui/instanceview/InstanceDelegate.cpp
+++ b/launcher/ui/instanceview/InstanceDelegate.cpp
@@ -405,6 +405,8 @@ void ListViewDelegate::setModelData(QWidget* editor, QAbstractItemModel* model,
     QString text = realeditor->toPlainText();
     text.replace(QChar('\n'), QChar(' '));
     text = text.trimmed();
+    // Prevent instance names longer than 128 chars
+    text.truncate(128);
     if(text.size() != 0)
     {
         model->setData(index, text);
diff --git a/launcher/ui/pages/BasePage.h b/launcher/ui/pages/BasePage.h
index 408965d0..ceb24040 100644
--- a/launcher/ui/pages/BasePage.h
+++ b/launcher/ui/pages/BasePage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -47,6 +67,8 @@ public:
     {
         m_container = container;
     };
+    virtual void retranslate() { }
+
 public:
     int stackIndex = -1;
     int listIndex = -1;
diff --git a/launcher/ui/pages/global/APIPage.cpp b/launcher/ui/pages/global/APIPage.cpp
index ad79e00c..287eb74f 100644
--- a/launcher/ui/pages/global/APIPage.cpp
+++ b/launcher/ui/pages/global/APIPage.cpp
@@ -1,16 +1,37 @@
-/* Copyright 2013-2021 MultiMC & PolyMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "APIPage.h"
@@ -65,3 +86,8 @@ bool APIPage::apply()
     applySettings();
     return true;
 }
+
+void APIPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
diff --git a/launcher/ui/pages/global/APIPage.h b/launcher/ui/pages/global/APIPage.h
index 9474ebbb..20356009 100644
--- a/launcher/ui/pages/global/APIPage.h
+++ b/launcher/ui/pages/global/APIPage.h
@@ -1,16 +1,37 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -49,6 +70,7 @@ public:
         return "APIs";
     }
     virtual bool apply() override;
+    void retranslate() override;
 
 private:
     void loadSettings();
diff --git a/launcher/ui/pages/global/APIPage.ui b/launcher/ui/pages/global/APIPage.ui
index 28c53b79..7a9088d1 100644
--- a/launcher/ui/pages/global/APIPage.ui
+++ b/launcher/ui/pages/global/APIPage.ui
@@ -71,12 +71,7 @@
             </property>
             <item>
              <property name="text">
-              <string>https://0x0.st</string>
-             </property>
-            </item>
-            <item>
-             <property name="text">
-              <string>https://paste.polymc.org</string>
+              <string notr="true">https://0x0.st</string>
              </property>
             </item>
            </widget>
diff --git a/launcher/ui/pages/global/AccountListPage.cpp b/launcher/ui/pages/global/AccountListPage.cpp
index eb1ee8d3..1edba499 100644
--- a/launcher/ui/pages/global/AccountListPage.cpp
+++ b/launcher/ui/pages/global/AccountListPage.cpp
@@ -1,16 +1,37 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "AccountListPage.h"
@@ -84,6 +105,11 @@ AccountListPage::~AccountListPage()
     delete ui;
 }
 
+void AccountListPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 void AccountListPage::ShowContextMenu(const QPoint& pos)
 {
     auto menu = ui->toolBar->createContextMenu(this, tr("Context menu"));
diff --git a/launcher/ui/pages/global/AccountListPage.h b/launcher/ui/pages/global/AccountListPage.h
index 841c3fd2..9395e92b 100644
--- a/launcher/ui/pages/global/AccountListPage.h
+++ b/launcher/ui/pages/global/AccountListPage.h
@@ -1,16 +1,37 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -58,6 +79,7 @@ public:
     {
         return "Getting-Started#adding-an-account";
     }
+    void retranslate() override;
 
 public slots:
     void on_actionAddMojang_triggered();
diff --git a/launcher/ui/pages/global/CustomCommandsPage.cpp b/launcher/ui/pages/global/CustomCommandsPage.cpp
index 8541e3c1..436d766e 100644
--- a/launcher/ui/pages/global/CustomCommandsPage.cpp
+++ b/launcher/ui/pages/global/CustomCommandsPage.cpp
@@ -1,3 +1,39 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *  Copyright (c) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "CustomCommandsPage.h"
 #include <QVBoxLayout>
 #include <QTabWidget>
@@ -49,3 +85,8 @@ void CustomCommandsPage::loadSettings()
         s->get("PostExitCommand").toString()
     );
 }
+
+void CustomCommandsPage::retranslate()
+{
+    commands->retranslate();
+}
diff --git a/launcher/ui/pages/global/CustomCommandsPage.h b/launcher/ui/pages/global/CustomCommandsPage.h
index a1155e0e..865503ff 100644
--- a/launcher/ui/pages/global/CustomCommandsPage.h
+++ b/launcher/ui/pages/global/CustomCommandsPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2018-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -47,6 +67,7 @@ public:
         return "Custom-commands";
     }
     bool apply() override;
+    void retranslate() override;
 
 private:
     void applySettings();
diff --git a/launcher/ui/pages/global/ExternalToolsPage.cpp b/launcher/ui/pages/global/ExternalToolsPage.cpp
index 41d900aa..693ca5c1 100644
--- a/launcher/ui/pages/global/ExternalToolsPage.cpp
+++ b/launcher/ui/pages/global/ExternalToolsPage.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "ExternalToolsPage.h"
@@ -231,3 +251,8 @@ bool ExternalToolsPage::apply()
     applySettings();
     return true;
 }
+
+void ExternalToolsPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
diff --git a/launcher/ui/pages/global/ExternalToolsPage.h b/launcher/ui/pages/global/ExternalToolsPage.h
index 5ae6148d..8bd38a19 100644
--- a/launcher/ui/pages/global/ExternalToolsPage.h
+++ b/launcher/ui/pages/global/ExternalToolsPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -54,6 +74,7 @@ public:
         return "Tools";
     }
     virtual bool apply() override;
+    void retranslate() override;
 
 private:
     void loadSettings();
diff --git a/launcher/ui/pages/global/JavaPage.cpp b/launcher/ui/pages/global/JavaPage.cpp
index bd79f11a..3eb4bd59 100644
--- a/launcher/ui/pages/global/JavaPage.cpp
+++ b/launcher/ui/pages/global/JavaPage.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "JavaPage.h"
@@ -151,3 +171,8 @@ void JavaPage::checkerFinished()
 {
     checker.reset();
 }
+
+void JavaPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
diff --git a/launcher/ui/pages/global/JavaPage.h b/launcher/ui/pages/global/JavaPage.h
index 8f9b3323..64d4098e 100644
--- a/launcher/ui/pages/global/JavaPage.h
+++ b/launcher/ui/pages/global/JavaPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -54,6 +74,7 @@ public:
         return "Java-settings";
     }
     bool apply() override;
+    void retranslate() override;
 
 private:
     void applySettings();
diff --git a/launcher/ui/pages/global/LanguagePage.cpp b/launcher/ui/pages/global/LanguagePage.cpp
index 359fdeeb..485d7fd4 100644
--- a/launcher/ui/pages/global/LanguagePage.cpp
+++ b/launcher/ui/pages/global/LanguagePage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "LanguagePage.h"
 
 #include "ui/widgets/LanguageSelectionWidget.h"
@@ -40,12 +75,3 @@ void LanguagePage::retranslate()
 {
     mainWidget->retranslate();
 }
-
-void LanguagePage::changeEvent(QEvent* event)
-{
-    if (event->type() == QEvent::LanguageChange)
-    {
-        retranslate();
-    }
-    QWidget::changeEvent(event);
-}
diff --git a/launcher/ui/pages/global/LanguagePage.h b/launcher/ui/pages/global/LanguagePage.h
index b1dd05ad..9b321170 100644
--- a/launcher/ui/pages/global/LanguagePage.h
+++ b/launcher/ui/pages/global/LanguagePage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -48,12 +68,11 @@ public:
     }
     bool apply() override;
 
-    void changeEvent(QEvent * ) override;
+    void retranslate() override;
 
 private:
     void applySettings();
     void loadSettings();
-    void retranslate();
 
 private:
     LanguageSelectionWidget *mainWidget;
diff --git a/launcher/ui/pages/global/LauncherPage.cpp b/launcher/ui/pages/global/LauncherPage.cpp
index ee68cd08..6f7e1cc7 100644
--- a/launcher/ui/pages/global/LauncherPage.cpp
+++ b/launcher/ui/pages/global/LauncherPage.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "LauncherPage.h"
@@ -441,3 +461,8 @@ void LauncherPage::refreshFontPreview()
         workCursor.insertBlock();
     }
 }
+
+void LauncherPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
diff --git a/launcher/ui/pages/global/LauncherPage.h b/launcher/ui/pages/global/LauncherPage.h
index 4d0cf3c9..63cfe9c3 100644
--- a/launcher/ui/pages/global/LauncherPage.h
+++ b/launcher/ui/pages/global/LauncherPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -57,6 +77,7 @@ public:
         return "Launcher-settings";
     }
     bool apply() override;
+    void retranslate() override;
 
 private:
     void applySettings();
diff --git a/launcher/ui/pages/global/MinecraftPage.cpp b/launcher/ui/pages/global/MinecraftPage.cpp
index 5470a586..9abae425 100644
--- a/launcher/ui/pages/global/MinecraftPage.cpp
+++ b/launcher/ui/pages/global/MinecraftPage.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "MinecraftPage.h"
@@ -94,3 +114,8 @@ void MinecraftPage::loadSettings()
 
     ui->closeAfterLaunchCheck->setChecked(s->get("CloseAfterLaunch").toBool());
 }
+
+void MinecraftPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
diff --git a/launcher/ui/pages/global/MinecraftPage.h b/launcher/ui/pages/global/MinecraftPage.h
index 42626d94..cf5f95eb 100644
--- a/launcher/ui/pages/global/MinecraftPage.h
+++ b/launcher/ui/pages/global/MinecraftPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -54,6 +74,7 @@ public:
         return "Minecraft-settings";
     }
     bool apply() override;
+    void retranslate() override;
 
 private:
     void updateCheckboxStuff();
diff --git a/launcher/ui/pages/global/ProxyPage.cpp b/launcher/ui/pages/global/ProxyPage.cpp
index 5bc8199e..aefd1e74 100644
--- a/launcher/ui/pages/global/ProxyPage.cpp
+++ b/launcher/ui/pages/global/ProxyPage.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "ProxyPage.h"
@@ -104,3 +124,8 @@ void ProxyPage::loadSettings()
     ui->proxyUserEdit->setText(s->get("ProxyUser").toString());
     ui->proxyPassEdit->setText(s->get("ProxyPass").toString());
 }
+
+void ProxyPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
diff --git a/launcher/ui/pages/global/ProxyPage.h b/launcher/ui/pages/global/ProxyPage.h
index 6698c349..e3677774 100644
--- a/launcher/ui/pages/global/ProxyPage.h
+++ b/launcher/ui/pages/global/ProxyPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -51,6 +71,7 @@ public:
         return "Proxy-settings";
     }
     bool apply() override;
+    void retranslate() override;
 
 private:
     void updateCheckboxStuff();
diff --git a/launcher/ui/pages/instance/GameOptionsPage.cpp b/launcher/ui/pages/instance/GameOptionsPage.cpp
index 782f2ab3..63443166 100644
--- a/launcher/ui/pages/instance/GameOptionsPage.cpp
+++ b/launcher/ui/pages/instance/GameOptionsPage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "GameOptionsPage.h"
 #include "ui_GameOptionsPage.h"
 #include "minecraft/MinecraftInstance.h"
@@ -35,3 +70,8 @@ void GameOptionsPage::closedImpl()
 {
     // m_model->unobserve();
 }
+
+void GameOptionsPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
diff --git a/launcher/ui/pages/instance/GameOptionsPage.h b/launcher/ui/pages/instance/GameOptionsPage.h
index 878903eb..de8c421e 100644
--- a/launcher/ui/pages/instance/GameOptionsPage.h
+++ b/launcher/ui/pages/instance/GameOptionsPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -56,6 +76,7 @@ public:
     {
         return "Game-Options-management";
     }
+    void retranslate() override;
 
 private: // data
     Ui::GameOptionsPage *ui = nullptr;
diff --git a/launcher/ui/pages/instance/InstanceSettingsPage.cpp b/launcher/ui/pages/instance/InstanceSettingsPage.cpp
index b0e18af4..e68a7124 100644
--- a/launcher/ui/pages/instance/InstanceSettingsPage.cpp
+++ b/launcher/ui/pages/instance/InstanceSettingsPage.cpp
@@ -1,3 +1,39 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *  Copyright (c) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "InstanceSettingsPage.h"
 #include "ui_InstanceSettingsPage.h"
 
@@ -339,3 +375,9 @@ void InstanceSettingsPage::checkerFinished()
 {
     checker.reset();
 }
+
+void InstanceSettingsPage::retranslate()
+{
+    ui->retranslateUi(this);
+    ui->customCommands->retranslate();  // TODO: why is this seperate from the others?
+}
diff --git a/launcher/ui/pages/instance/InstanceSettingsPage.h b/launcher/ui/pages/instance/InstanceSettingsPage.h
index 5c8c8e66..97d1296f 100644
--- a/launcher/ui/pages/instance/InstanceSettingsPage.h
+++ b/launcher/ui/pages/instance/InstanceSettingsPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -55,6 +75,7 @@ public:
         return "Instance-settings";
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
 
 private slots:
     void on_javaDetectBtn_clicked();
diff --git a/launcher/ui/pages/instance/LogPage.cpp b/launcher/ui/pages/instance/LogPage.cpp
index b66c6cc7..30a8735f 100644
--- a/launcher/ui/pages/instance/LogPage.cpp
+++ b/launcher/ui/pages/instance/LogPage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "LogPage.h"
 #include "ui_LogPage.h"
 
@@ -328,3 +363,8 @@ void LogPage::findActivated()
         ui->searchBar->selectAll();
     }
 }
+
+void LogPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
diff --git a/launcher/ui/pages/instance/LogPage.h b/launcher/ui/pages/instance/LogPage.h
index cab25563..f6fe87c4 100644
--- a/launcher/ui/pages/instance/LogPage.h
+++ b/launcher/ui/pages/instance/LogPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -54,6 +74,7 @@ public:
         return "Minecraft-Logs";
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
 
 private slots:
     void on_btnPaste_clicked();
diff --git a/launcher/ui/pages/instance/ModFolderPage.cpp b/launcher/ui/pages/instance/ModFolderPage.cpp
index ffb87bbe..599f0e11 100644
--- a/launcher/ui/pages/instance/ModFolderPage.cpp
+++ b/launcher/ui/pages/instance/ModFolderPage.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "ModFolderPage.h"
@@ -244,10 +264,7 @@ void ModFolderPage::on_RunningState_changed(bool running)
         return;
     }
     m_controlsEnabled = !running;
-    ui->actionAdd->setEnabled(m_controlsEnabled);
-    ui->actionDisable->setEnabled(m_controlsEnabled);
-    ui->actionEnable->setEnabled(m_controlsEnabled);
-    ui->actionRemove->setEnabled(m_controlsEnabled);
+    ui->actionsToolbar->setEnabled(m_controlsEnabled);
 }
 
 bool ModFolderPage::shouldDisplay() const
@@ -255,6 +272,11 @@ bool ModFolderPage::shouldDisplay() const
     return true;
 }
 
+void ModFolderPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 bool CoreModFolderPage::shouldDisplay() const
 {
     if (ModFolderPage::shouldDisplay())
diff --git a/launcher/ui/pages/instance/ModFolderPage.h b/launcher/ui/pages/instance/ModFolderPage.h
index fbda3cd8..72e2d404 100644
--- a/launcher/ui/pages/instance/ModFolderPage.h
+++ b/launcher/ui/pages/instance/ModFolderPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -66,6 +86,7 @@ public:
         return m_helpName;
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
 
     virtual void openedImpl() override;
     virtual void closedImpl() override;
diff --git a/launcher/ui/pages/instance/NotesPage.cpp b/launcher/ui/pages/instance/NotesPage.cpp
index fa966c91..95a9fad2 100644
--- a/launcher/ui/pages/instance/NotesPage.cpp
+++ b/launcher/ui/pages/instance/NotesPage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "NotesPage.h"
 #include "ui_NotesPage.h"
 #include <QTabBar>
@@ -19,3 +54,8 @@ bool NotesPage::apply()
     m_inst->setNotes(ui->noteEditor->toPlainText());
     return true;
 }
+
+void NotesPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
diff --git a/launcher/ui/pages/instance/NotesPage.h b/launcher/ui/pages/instance/NotesPage.h
index 539401ee..80a7279b 100644
--- a/launcher/ui/pages/instance/NotesPage.h
+++ b/launcher/ui/pages/instance/NotesPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -53,6 +73,7 @@ public:
     {
         return "Notes";
     }
+    void retranslate() override;
 
 private:
     Ui::NotesPage *ui;
diff --git a/launcher/ui/pages/instance/OtherLogsPage.cpp b/launcher/ui/pages/instance/OtherLogsPage.cpp
index 0131c5c1..0c1939c6 100644
--- a/launcher/ui/pages/instance/OtherLogsPage.cpp
+++ b/launcher/ui/pages/instance/OtherLogsPage.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "OtherLogsPage.h"
@@ -55,6 +75,11 @@ OtherLogsPage::~OtherLogsPage()
     delete ui;
 }
 
+void OtherLogsPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 void OtherLogsPage::openedImpl()
 {
     m_watcher->enable();
diff --git a/launcher/ui/pages/instance/OtherLogsPage.h b/launcher/ui/pages/instance/OtherLogsPage.h
index b2b2a91b..95591638 100644
--- a/launcher/ui/pages/instance/OtherLogsPage.h
+++ b/launcher/ui/pages/instance/OtherLogsPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -52,6 +72,8 @@ public:
     {
         return "Minecraft-Logs";
     }
+    void retranslate() override;
+
     void openedImpl() override;
     void closedImpl() override;
 
diff --git a/launcher/ui/pages/instance/ResourcePackPage.h b/launcher/ui/pages/instance/ResourcePackPage.h
index 1486bf52..8054926c 100644
--- a/launcher/ui/pages/instance/ResourcePackPage.h
+++ b/launcher/ui/pages/instance/ResourcePackPage.h
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #pragma once
 
 #include "ModFolderPage.h"
diff --git a/launcher/ui/pages/instance/ScreenshotsPage.cpp b/launcher/ui/pages/instance/ScreenshotsPage.cpp
index 4011d88c..e694ebe3 100644
--- a/launcher/ui/pages/instance/ScreenshotsPage.cpp
+++ b/launcher/ui/pages/instance/ScreenshotsPage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "ScreenshotsPage.h"
 #include "ui_ScreenshotsPage.h"
 
@@ -270,6 +305,11 @@ bool ScreenshotsPage::eventFilter(QObject *obj, QEvent *evt)
     return QWidget::eventFilter(obj, evt);
 }
 
+void ScreenshotsPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 ScreenshotsPage::~ScreenshotsPage()
 {
     delete ui;
diff --git a/launcher/ui/pages/instance/ScreenshotsPage.h b/launcher/ui/pages/instance/ScreenshotsPage.h
index 2a1fdeee..50cf1a17 100644
--- a/launcher/ui/pages/instance/ScreenshotsPage.h
+++ b/launcher/ui/pages/instance/ScreenshotsPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -67,6 +87,7 @@ public:
     {
         return !m_uploadActive;
     }
+    void retranslate() override;
 
 protected:
     QMenu * createPopupMenu() override;
diff --git a/launcher/ui/pages/instance/ServersPage.cpp b/launcher/ui/pages/instance/ServersPage.cpp
index 8116d2bf..2af6164c 100644
--- a/launcher/ui/pages/instance/ServersPage.cpp
+++ b/launcher/ui/pages/instance/ServersPage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "ServersPage.h"
 #include "ui_ServersPage.h"
 
@@ -600,6 +635,11 @@ ServersPage::~ServersPage()
     delete ui;
 }
 
+void ServersPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 void ServersPage::ShowContextMenu(const QPoint& pos)
 {
     auto menu = ui->toolBar->createContextMenu(this, tr("Context menu"));
diff --git a/launcher/ui/pages/instance/ServersPage.h b/launcher/ui/pages/instance/ServersPage.h
index d91da2ae..5173712c 100644
--- a/launcher/ui/pages/instance/ServersPage.h
+++ b/launcher/ui/pages/instance/ServersPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -57,6 +77,7 @@ public:
     {
         return "Servers-management";
     }
+    void retranslate() override;
 
 protected:
     QMenu * createPopupMenu() override;
diff --git a/launcher/ui/pages/instance/ShaderPackPage.h b/launcher/ui/pages/instance/ShaderPackPage.h
index 36724992..7d4f5074 100644
--- a/launcher/ui/pages/instance/ShaderPackPage.h
+++ b/launcher/ui/pages/instance/ShaderPackPage.h
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #pragma once
 
 #include "ModFolderPage.h"
diff --git a/launcher/ui/pages/instance/TexturePackPage.h b/launcher/ui/pages/instance/TexturePackPage.h
index 3f04997d..e8cefe6e 100644
--- a/launcher/ui/pages/instance/TexturePackPage.h
+++ b/launcher/ui/pages/instance/TexturePackPage.h
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #pragma once
 
 #include "ModFolderPage.h"
diff --git a/launcher/ui/pages/instance/VersionPage.cpp b/launcher/ui/pages/instance/VersionPage.cpp
index 0fa5f68d..97c6fe8f 100644
--- a/launcher/ui/pages/instance/VersionPage.cpp
+++ b/launcher/ui/pages/instance/VersionPage.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "Application.h"
@@ -99,6 +119,11 @@ bool VersionPage::shouldDisplay() const
     return true;
 }
 
+void VersionPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 QMenu * VersionPage::createPopupMenu()
 {
     QMenu* filteredMenu = QMainWindow::createPopupMenu();
@@ -212,6 +237,8 @@ void VersionPage::updateVersionControls()
     // FIXME: this is a dirty hack
     auto minecraftVersion = Version(m_profile->getComponentVersion("net.minecraft"));
 
+    ui->actionInstall_Forge->setEnabled(controlsEnabled);
+
     bool supportsFabric = minecraftVersion >= Version("1.14");
     ui->actionInstall_Fabric->setEnabled(controlsEnabled && supportsFabric);
 
diff --git a/launcher/ui/pages/instance/VersionPage.h b/launcher/ui/pages/instance/VersionPage.h
index b5ce4064..2d37af43 100644
--- a/launcher/ui/pages/instance/VersionPage.h
+++ b/launcher/ui/pages/instance/VersionPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -47,6 +67,7 @@ public:
         return "Instance-Version";
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
 
 private slots:
     void on_actionChange_version_triggered();
diff --git a/launcher/ui/pages/instance/WorldListPage.cpp b/launcher/ui/pages/instance/WorldListPage.cpp
index d2bf63bd..650583a2 100644
--- a/launcher/ui/pages/instance/WorldListPage.cpp
+++ b/launcher/ui/pages/instance/WorldListPage.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2015-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "WorldListPage.h"
@@ -122,6 +142,11 @@ bool WorldListPage::shouldDisplay() const
     return true;
 }
 
+void WorldListPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 bool WorldListPage::worldListFilter(QKeyEvent *keyEvent)
 {
     switch (keyEvent->key())
diff --git a/launcher/ui/pages/instance/WorldListPage.h b/launcher/ui/pages/instance/WorldListPage.h
index e07d5794..17e36a08 100644
--- a/launcher/ui/pages/instance/WorldListPage.h
+++ b/launcher/ui/pages/instance/WorldListPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2015-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -57,6 +77,7 @@ public:
         return "Worlds";
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
 
     virtual void openedImpl() override;
     virtual void closedImpl() override;
diff --git a/launcher/ui/pages/modplatform/ImportPage.cpp b/launcher/ui/pages/modplatform/ImportPage.cpp
index c9e24ead..487bf77b 100644
--- a/launcher/ui/pages/modplatform/ImportPage.cpp
+++ b/launcher/ui/pages/modplatform/ImportPage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "ImportPage.h"
 #include "ui_ImportPage.h"
 
@@ -50,6 +85,11 @@ bool ImportPage::shouldDisplay() const
     return true;
 }
 
+void ImportPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 void ImportPage::openedImpl()
 {
     updateState();
diff --git a/launcher/ui/pages/modplatform/ImportPage.h b/launcher/ui/pages/modplatform/ImportPage.h
index aba4def0..8d13ac10 100644
--- a/launcher/ui/pages/modplatform/ImportPage.h
+++ b/launcher/ui/pages/modplatform/ImportPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -52,6 +72,7 @@ public:
         return "Zip-import";
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
 
     void setUrl(const QString & url);
     void openedImpl() override;
diff --git a/launcher/ui/pages/modplatform/ModPage.cpp b/launcher/ui/pages/modplatform/ModPage.cpp
index 1386ba24..3a116d3c 100644
--- a/launcher/ui/pages/modplatform/ModPage.cpp
+++ b/launcher/ui/pages/modplatform/ModPage.cpp
@@ -95,7 +95,7 @@ void ModPage::onSelectionChanged(QModelIndex first, QModelIndex second)
         for (int i = 0; i < current.versions.size(); i++) {
             ui->versionSelectionBox->addItem(current.versions[i].version, QVariant(i));
         }
-        if (ui->versionSelectionBox->count() == 0) { ui->versionSelectionBox->addItem(tr("No Valid Version found !"), QVariant(-1)); }
+        if (ui->versionSelectionBox->count() == 0) { ui->versionSelectionBox->addItem(tr("No valid version found."), QVariant(-1)); }
 
         updateSelectionButton();
     }
@@ -126,6 +126,11 @@ void ModPage::onModSelected()
 
 /******** Make changes to the UI ********/
 
+void ModPage::retranslate()
+{
+   ui->retranslateUi(this); 
+}
+
 void ModPage::updateModVersions()
 {
     auto packProfile = (dynamic_cast<MinecraftInstance*>(m_instance))->getPackProfile();
diff --git a/launcher/ui/pages/modplatform/ModPage.h b/launcher/ui/pages/modplatform/ModPage.h
index 58024260..0cd13f37 100644
--- a/launcher/ui/pages/modplatform/ModPage.h
+++ b/launcher/ui/pages/modplatform/ModPage.h
@@ -33,6 +33,8 @@ class ModPage : public QWidget, public BasePage {
     virtual auto debugName() const -> QString = 0;
 
 
+    void retranslate() override;
+
     auto shouldDisplay() const -> bool override = 0;
     virtual auto validateVersion(ModPlatform::IndexedVersion& ver, QString mineVer, QString loaderVer = "") const -> bool = 0;
 
diff --git a/launcher/ui/pages/modplatform/ModPage.ui b/launcher/ui/pages/modplatform/ModPage.ui
index 2b52df22..508f1bac 100644
--- a/launcher/ui/pages/modplatform/ModPage.ui
+++ b/launcher/ui/pages/modplatform/ModPage.ui
@@ -51,7 +51,7 @@
    <item row="0" column="0">
     <widget class="QLineEdit" name="searchEdit">
      <property name="placeholderText">
-      <string>Search and filter ...</string>
+      <string>Search and filter...</string>
      </property>
     </widget>
    </item>
diff --git a/launcher/ui/pages/modplatform/VanillaPage.cpp b/launcher/ui/pages/modplatform/VanillaPage.cpp
index 5c58c1f1..c691128f 100644
--- a/launcher/ui/pages/modplatform/VanillaPage.cpp
+++ b/launcher/ui/pages/modplatform/VanillaPage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "VanillaPage.h"
 #include "ui_VanillaPage.h"
 
@@ -74,6 +109,11 @@ bool VanillaPage::shouldDisplay() const
     return true;
 }
 
+void VanillaPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 BaseVersionPtr VanillaPage::selectedVersion() const
 {
     return m_selectedVersion;
diff --git a/launcher/ui/pages/modplatform/VanillaPage.h b/launcher/ui/pages/modplatform/VanillaPage.h
index fd4c2daa..4e7479df 100644
--- a/launcher/ui/pages/modplatform/VanillaPage.h
+++ b/launcher/ui/pages/modplatform/VanillaPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -52,6 +72,8 @@ public:
         return "Vanilla-platform";
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
+
     void openedImpl() override;
 
     BaseVersionPtr selectedVersion() const;
diff --git a/launcher/ui/pages/modplatform/atlauncher/AtlPage.cpp b/launcher/ui/pages/modplatform/atlauncher/AtlPage.cpp
index af0cc8d6..df9b9207 100644
--- a/launcher/ui/pages/modplatform/atlauncher/AtlPage.cpp
+++ b/launcher/ui/pages/modplatform/atlauncher/AtlPage.cpp
@@ -1,18 +1,37 @@
+// SPDX-License-Identifier: GPL-3.0-only
 /*
- * Copyright 2020-2021 Jamie Mansfield <jmansfield@cadixdev.org>
- * Copyright 2021 Philip T <me@phit.link>
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2020-2021 Jamie Mansfield <jmansfield@cadixdev.org>
+ *      Copyright 2021 Philip T <me@phit.link>
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "AtlPage.h"
@@ -65,6 +84,11 @@ bool AtlPage::shouldDisplay() const
     return true;
 }
 
+void AtlPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 void AtlPage::openedImpl()
 {
     if(!initialized)
diff --git a/launcher/ui/pages/modplatform/atlauncher/AtlPage.h b/launcher/ui/pages/modplatform/atlauncher/AtlPage.h
index 5b3f2228..c95b0127 100644
--- a/launcher/ui/pages/modplatform/atlauncher/AtlPage.h
+++ b/launcher/ui/pages/modplatform/atlauncher/AtlPage.h
@@ -1,17 +1,36 @@
+// SPDX-License-Identifier: GPL-3.0-only
 /*
- * Copyright 2020-2021 Jamie Mansfield <jmansfield@cadixdev.org>
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2020-2021 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -42,7 +61,7 @@ public:
     virtual ~AtlPage();
     virtual QString displayName() const override
     {
-        return tr("ATLauncher");
+        return "ATLauncher";
     }
     virtual QIcon icon() const override
     {
@@ -57,6 +76,7 @@ public:
         return "ATL-platform";
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
 
     void openedImpl() override;
 
diff --git a/launcher/ui/pages/modplatform/atlauncher/AtlPage.ui b/launcher/ui/pages/modplatform/atlauncher/AtlPage.ui
index 9085766a..746aa6d1 100644
--- a/launcher/ui/pages/modplatform/atlauncher/AtlPage.ui
+++ b/launcher/ui/pages/modplatform/atlauncher/AtlPage.ui
@@ -71,7 +71,7 @@
    <item row="0" column="0">
     <widget class="QLineEdit" name="searchEdit">
      <property name="placeholderText">
-      <string>Search and filter ...</string>
+      <string>Search and filter...</string>
      </property>
      <property name="clearButtonEnabled">
       <bool>true</bool>
diff --git a/launcher/ui/pages/modplatform/flame/FlameModPage.cpp b/launcher/ui/pages/modplatform/flame/FlameModPage.cpp
index c409a5cb..864ae8e6 100644
--- a/launcher/ui/pages/modplatform/flame/FlameModPage.cpp
+++ b/launcher/ui/pages/modplatform/flame/FlameModPage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "FlameModPage.h"
 #include "ui_ModPage.h"
 
diff --git a/launcher/ui/pages/modplatform/flame/FlameModPage.h b/launcher/ui/pages/modplatform/flame/FlameModPage.h
index b48216bb..dc58fd7f 100644
--- a/launcher/ui/pages/modplatform/flame/FlameModPage.h
+++ b/launcher/ui/pages/modplatform/flame/FlameModPage.h
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #pragma once
 
 #include "ui/pages/modplatform/ModPage.h"
@@ -11,12 +46,12 @@ class FlameModPage : public ModPage {
     explicit FlameModPage(ModDownloadDialog* dialog, BaseInstance* instance);
     ~FlameModPage() override = default;
 
-    inline auto displayName() const -> QString override { return tr("CurseForge"); }
+    inline auto displayName() const -> QString override { return "CurseForge"; }
     inline auto icon() const -> QIcon override { return APPLICATION->getThemedIcon("flame"); }
     inline auto id() const -> QString override { return "curseforge"; }
     inline auto helpPage() const -> QString override { return "Flame-platform"; }
 
-    inline auto debugName() const -> QString override { return tr("Flame"); }
+    inline auto debugName() const -> QString override { return "Flame"; }
     inline auto metaEntryBase() const -> QString override { return "FlameMods"; };
 
     auto validateVersion(ModPlatform::IndexedVersion& ver, QString mineVer, QString loaderVer = "") const -> bool override;
diff --git a/launcher/ui/pages/modplatform/flame/FlamePage.cpp b/launcher/ui/pages/modplatform/flame/FlamePage.cpp
index 7e6ac2fd..cbe709c2 100644
--- a/launcher/ui/pages/modplatform/flame/FlamePage.cpp
+++ b/launcher/ui/pages/modplatform/flame/FlamePage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "FlamePage.h"
 #include "ui_FlamePage.h"
 
@@ -57,6 +92,11 @@ bool FlamePage::shouldDisplay() const
     return true;
 }
 
+void FlamePage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 void FlamePage::openedImpl()
 {
     suggestCurrent();
diff --git a/launcher/ui/pages/modplatform/flame/FlamePage.h b/launcher/ui/pages/modplatform/flame/FlamePage.h
index 5cfe21dc..baac57c9 100644
--- a/launcher/ui/pages/modplatform/flame/FlamePage.h
+++ b/launcher/ui/pages/modplatform/flame/FlamePage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -42,7 +62,7 @@ public:
     virtual ~FlamePage();
     virtual QString displayName() const override
     {
-        return tr("CurseForge");
+        return "CurseForge";
     }
     virtual QIcon icon() const override
     {
@@ -57,6 +77,7 @@ public:
         return "Flame-platform";
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
 
     void openedImpl() override;
 
diff --git a/launcher/ui/pages/modplatform/flame/FlamePage.ui b/launcher/ui/pages/modplatform/flame/FlamePage.ui
index 9723815a..6d8d8e10 100644
--- a/launcher/ui/pages/modplatform/flame/FlamePage.ui
+++ b/launcher/ui/pages/modplatform/flame/FlamePage.ui
@@ -71,7 +71,7 @@
       <item row="0" column="0">
         <widget class="QLineEdit" name="searchEdit">
           <property name="placeholderText">
-            <string>Search and filter ...</string>
+            <string>Search and filter...</string>
           </property>
         </widget>
       </item>
diff --git a/launcher/ui/pages/modplatform/ftb/FtbPage.cpp b/launcher/ui/pages/modplatform/ftb/FtbPage.cpp
index b6b5dcd4..8a93bc2e 100644
--- a/launcher/ui/pages/modplatform/ftb/FtbPage.cpp
+++ b/launcher/ui/pages/modplatform/ftb/FtbPage.cpp
@@ -1,18 +1,37 @@
+// SPDX-License-Identifier: GPL-3.0-only
 /*
- * Copyright 2020-2021 Jamie Mansfield <jmansfield@cadixdev.org>
- * Copyright 2021 Philip T <me@phit.link>
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2020-2021 Jamie Mansfield <jmansfield@cadixdev.org>
+ *      Copyright 2021 Philip T <me@phit.link>
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "FtbPage.h"
@@ -78,6 +97,11 @@ bool FtbPage::shouldDisplay() const
     return true;
 }
 
+void FtbPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 void FtbPage::openedImpl()
 {
     if(!initialised)
diff --git a/launcher/ui/pages/modplatform/ftb/FtbPage.h b/launcher/ui/pages/modplatform/ftb/FtbPage.h
index 28a189f0..90c8e7fd 100644
--- a/launcher/ui/pages/modplatform/ftb/FtbPage.h
+++ b/launcher/ui/pages/modplatform/ftb/FtbPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -40,7 +60,7 @@ public:
     virtual ~FtbPage();
     virtual QString displayName() const override
     {
-        return tr("FTB");
+        return "FTB";
     }
     virtual QIcon icon() const override
     {
@@ -55,6 +75,7 @@ public:
         return "FTB-platform";
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
 
     void openedImpl() override;
 
diff --git a/launcher/ui/pages/modplatform/ftb/FtbPage.ui b/launcher/ui/pages/modplatform/ftb/FtbPage.ui
index e9c783e3..850bf091 100644
--- a/launcher/ui/pages/modplatform/ftb/FtbPage.ui
+++ b/launcher/ui/pages/modplatform/ftb/FtbPage.ui
@@ -34,7 +34,7 @@
    <item row="0" column="0">
     <widget class="QLineEdit" name="searchEdit">
      <property name="placeholderText">
-      <string>Search and filter ...</string>
+      <string>Search and filter...</string>
      </property>
      <property name="clearButtonEnabled">
       <bool>true</bool>
diff --git a/launcher/ui/pages/modplatform/legacy_ftb/Page.cpp b/launcher/ui/pages/modplatform/legacy_ftb/Page.cpp
index 891704de..27a12cda 100644
--- a/launcher/ui/pages/modplatform/legacy_ftb/Page.cpp
+++ b/launcher/ui/pages/modplatform/legacy_ftb/Page.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "Page.h"
 #include "ui_Page.h"
 
@@ -122,6 +157,11 @@ void Page::openedImpl()
     suggestCurrent();
 }
 
+void Page::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 void Page::suggestCurrent()
 {
     if(!isOpened)
diff --git a/launcher/ui/pages/modplatform/legacy_ftb/Page.h b/launcher/ui/pages/modplatform/legacy_ftb/Page.h
index d8225e11..52db7d91 100644
--- a/launcher/ui/pages/modplatform/legacy_ftb/Page.h
+++ b/launcher/ui/pages/modplatform/legacy_ftb/Page.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -50,7 +70,7 @@ public:
     virtual ~Page();
     QString displayName() const override
     {
-        return tr("FTB Legacy");
+        return "FTB Legacy";
     }
     QIcon icon() const override
     {
@@ -66,6 +86,7 @@ public:
     }
     bool shouldDisplay() const override;
     void openedImpl() override;
+    void retranslate() override;
 
 private:
     void suggestCurrent();
diff --git a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp b/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp
index aebfee74..ddaf96e2 100644
--- a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp
+++ b/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "ModrinthPage.h"
 #include "ui_ModPage.h"
 
diff --git a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.h b/launcher/ui/pages/modplatform/modrinth/ModrinthPage.h
index 6e911b83..aa5ed793 100644
--- a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.h
+++ b/launcher/ui/pages/modplatform/modrinth/ModrinthPage.h
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #pragma once
 
 #include "ui/pages/modplatform/ModPage.h"
@@ -11,12 +46,12 @@ class ModrinthPage : public ModPage {
     explicit ModrinthPage(ModDownloadDialog* dialog, BaseInstance* instance);
     ~ModrinthPage() override = default;
 
-    inline auto displayName() const -> QString override { return tr("Modrinth"); }
+    inline auto displayName() const -> QString override { return "Modrinth"; }
     inline auto icon() const -> QIcon override { return APPLICATION->getThemedIcon("modrinth"); }
     inline auto id() const -> QString override { return "modrinth"; }
     inline auto helpPage() const -> QString override { return "Modrinth-platform"; }
 
-    inline auto debugName() const -> QString override { return tr("Modrinth"); }
+    inline auto debugName() const -> QString override { return "Modrinth"; }
     inline auto metaEntryBase() const -> QString override { return "ModrinthPacks"; };
 
     auto validateVersion(ModPlatform::IndexedVersion& ver, QString mineVer, QString loaderVer = "") const -> bool override;
diff --git a/launcher/ui/pages/modplatform/technic/TechnicPage.cpp b/launcher/ui/pages/modplatform/technic/TechnicPage.cpp
index 67f6e52c..c3807269 100644
--- a/launcher/ui/pages/modplatform/technic/TechnicPage.cpp
+++ b/launcher/ui/pages/modplatform/technic/TechnicPage.cpp
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "TechnicPage.h"
@@ -61,6 +81,11 @@ bool TechnicPage::shouldDisplay() const
     return true;
 }
 
+void TechnicPage::retranslate()
+{
+    ui->retranslateUi(this);
+}
+
 void TechnicPage::openedImpl()
 {
     suggestCurrent();
diff --git a/launcher/ui/pages/modplatform/technic/TechnicPage.h b/launcher/ui/pages/modplatform/technic/TechnicPage.h
index 21695dd0..bf4baa58 100644
--- a/launcher/ui/pages/modplatform/technic/TechnicPage.h
+++ b/launcher/ui/pages/modplatform/technic/TechnicPage.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -42,7 +62,7 @@ public:
     virtual ~TechnicPage();
     virtual QString displayName() const override
     {
-        return tr("Technic");
+        return "Technic";
     }
     virtual QIcon icon() const override
     {
@@ -57,6 +77,7 @@ public:
         return "Technic-platform";
     }
     virtual bool shouldDisplay() const override;
+    void retranslate() override;
 
     void openedImpl() override;
 
diff --git a/launcher/ui/pages/modplatform/technic/TechnicPage.ui b/launcher/ui/pages/modplatform/technic/TechnicPage.ui
index dde685d9..62ab6154 100644
--- a/launcher/ui/pages/modplatform/technic/TechnicPage.ui
+++ b/launcher/ui/pages/modplatform/technic/TechnicPage.ui
@@ -29,7 +29,7 @@
       <item>
        <widget class="QLineEdit" name="searchEdit">
         <property name="placeholderText">
-         <string>Search and filter ...</string>
+         <string>Search and filter...</string>
         </property>
        </widget>
       </item>
diff --git a/launcher/ui/setupwizard/JavaWizardPage.cpp b/launcher/ui/setupwizard/JavaWizardPage.cpp
index 63b3d480..14683778 100644
--- a/launcher/ui/setupwizard/JavaWizardPage.cpp
+++ b/launcher/ui/setupwizard/JavaWizardPage.cpp
@@ -93,6 +93,6 @@ void JavaWizardPage::retranslate()
 {
     setTitle(tr("Java"));
     setSubTitle(tr("You do not have a working Java set up yet or it went missing.\n"
-        "Please select one of the following or browse for a java executable."));
+        "Please select one of the following or browse for a Java executable."));
     m_java_widget->retranslate();
 }
diff --git a/launcher/ui/widgets/CustomCommands.cpp b/launcher/ui/widgets/CustomCommands.cpp
index 24bdc07d..5a718b54 100644
--- a/launcher/ui/widgets/CustomCommands.cpp
+++ b/launcher/ui/widgets/CustomCommands.cpp
@@ -1,3 +1,38 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
 #include "CustomCommands.h"
 #include "ui_CustomCommands.h"
 
@@ -26,6 +61,10 @@ void CustomCommands::initialize(bool checkable, bool checked, const QString& pre
 }
 
 
+void CustomCommands::retranslate() {
+    ui->retranslateUi(this);
+}
+
 bool CustomCommands::checked() const
 {
     if(!ui->customCommandsGroupBox->isCheckable())
diff --git a/launcher/ui/widgets/CustomCommands.h b/launcher/ui/widgets/CustomCommands.h
index 8db991fa..4a7a17ef 100644
--- a/launcher/ui/widgets/CustomCommands.h
+++ b/launcher/ui/widgets/CustomCommands.h
@@ -1,16 +1,36 @@
-/* Copyright 2018-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Sefa Eyeoglu <contact@scrumplex.net>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -31,6 +51,7 @@ public:
     virtual ~CustomCommands();
     void initialize(bool checkable, bool checked, const QString & prelaunch, const QString & wrapper, const QString & postexit);
 
+    void retranslate();
     bool checked() const;
     QString prelaunchCommand() const;
     QString wrapperCommand() const;
diff --git a/launcher/ui/widgets/CustomCommands.ui b/launcher/ui/widgets/CustomCommands.ui
index 21964ad2..dbd54431 100644
--- a/launcher/ui/widgets/CustomCommands.ui
+++ b/launcher/ui/widgets/CustomCommands.ui
@@ -74,7 +74,7 @@
    <item>
     <widget class="QLabel" name="labelCustomCmdsDescription">
      <property name="text">
-      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Pre-launch command runs before the instance launches and post-exit command runs after it exits.&lt;/p&gt;&lt;p&gt;Both will be run in the launcher's working folder with extra environment variables:&lt;/p&gt;&lt;ul&gt;&lt;li&gt;$INST_NAME - Name of the instance&lt;/li&gt;&lt;li&gt;$INST_ID - ID of the instance (its folder name)&lt;/li&gt;&lt;li&gt;$INST_DIR - absolute path of the instance&lt;/li&gt;&lt;li&gt;$INST_MC_DIR - absolute path of minecraft&lt;/li&gt;&lt;li&gt;$INST_JAVA - java binary used for launch&lt;/li&gt;&lt;li&gt;$INST_JAVA_ARGS - command-line parameters used for launch&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;Wrapper command allows launching using an extra wrapper program (like 'optirun' on Linux)&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Pre-launch command runs before the instance launches and post-exit command runs after it exits.&lt;/p&gt;&lt;p&gt;Both will be run in the launcher's working folder with extra environment variables:&lt;/p&gt;&lt;ul&gt;&lt;li&gt;$INST_NAME - Name of the instance&lt;/li&gt;&lt;li&gt;$INST_ID - ID of the instance (its folder name)&lt;/li&gt;&lt;li&gt;$INST_DIR - absolute path of the instance&lt;/li&gt;&lt;li&gt;$INST_MC_DIR - absolute path of Minecraft&lt;/li&gt;&lt;li&gt;$INST_JAVA - Java binary used for launch&lt;/li&gt;&lt;li&gt;$INST_JAVA_ARGS - command-line parameters used for launch&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;Wrapper command allows launching using an extra wrapper program (like 'optirun' on Linux)&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
      </property>
      <property name="alignment">
       <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
diff --git a/launcher/ui/widgets/JavaSettingsWidget.cpp b/launcher/ui/widgets/JavaSettingsWidget.cpp
index ed07e082..340518b1 100644
--- a/launcher/ui/widgets/JavaSettingsWidget.cpp
+++ b/launcher/ui/widgets/JavaSettingsWidget.cpp
@@ -287,7 +287,7 @@ void JavaSettingsWidget::on_javaStatusBtn_clicked()
             break;
         case JavaStatus::DoesNotStart:
         {
-            text += QObject::tr("The specified java binary didn't start properly.<br />");
+            text += QObject::tr("The specified Java binary didn't start properly.<br />");
             auto htmlError = m_result.errorLog;
             if(!htmlError.isEmpty())
             {
@@ -299,7 +299,7 @@ void JavaSettingsWidget::on_javaStatusBtn_clicked()
         }
         case JavaStatus::ReturnedInvalidData:
         {
-            text += QObject::tr("The specified java binary returned unexpected results:<br />");
+            text += QObject::tr("The specified Java binary returned unexpected results:<br />");
             auto htmlOut = m_result.outLog;
             if(!htmlOut.isEmpty())
             {
diff --git a/launcher/ui/widgets/PageContainer.cpp b/launcher/ui/widgets/PageContainer.cpp
index 558a98fb..2af7d731 100644
--- a/launcher/ui/widgets/PageContainer.cpp
+++ b/launcher/ui/widgets/PageContainer.cpp
@@ -1,16 +1,37 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #include "PageContainer.h"
@@ -162,6 +183,15 @@ void PageContainer::createUI()
     setLayout(m_layout);
 }
 
+void PageContainer::retranslate()
+{
+    if (m_currentPage)
+        m_header->setText(m_currentPage->displayName());
+
+    for (auto page : m_model->pages())
+        page->retranslate();
+}
+
 void PageContainer::addButtons(QWidget *buttons)
 {
     m_layout->addWidget(buttons, 2, 0, 1, 2);
@@ -239,3 +269,11 @@ bool PageContainer::saveAll()
     }
     return true;
 }
+
+void PageContainer::changeEvent(QEvent* event)
+{
+    if (event->type() == QEvent::LanguageChange) {
+        retranslate();
+    }
+    QWidget::changeEvent(event);
+}
diff --git a/launcher/ui/widgets/PageContainer.h b/launcher/ui/widgets/PageContainer.h
index 8d2172db..86f549eb 100644
--- a/launcher/ui/widgets/PageContainer.h
+++ b/launcher/ui/widgets/PageContainer.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  PolyMC - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -66,8 +86,11 @@ public:
         m_container = container;
     };
 
+    void changeEvent(QEvent*) override;
+
 private:
     void createUI();
+    void retranslate();
 
 public slots:
     void help();