{
    "widgets":[
        {
            "name": "ServerWidget",
            "alias": "sw"
        },
        {
            "name": "EssenceWidget",
            "alias": "ew"
        }
    ],
    "layout": [
        {
            "op": "stack",
            "direction": "vertical",
            "align": "center",
            "apply_to": ["sw", "ew"]
        },
        {
            "op": "align",
            "reference": "horizontalCenter",
            "apply_to": ["sw", "ew"]
        }
    ]
}