Visualizer 
{
    "value": "idle",
    "previousValue": "",
    "event": {},
    "previousEvent": {},
    "context": {
        "orientation": "horizontal",
        "activeResizeId": null,
        "size": [
            {
                "id": "a",
                "size": 50
            },
            {
                "id": "b",
                "size": 50
            }
        ],
        "activeResizeState": {
            "isAtMin": false,
            "isAtMax": false
        },
        "id": ":R1m:",
        "isHorizontal": true,
        "panels": [
            {
                "id": "a",
                "size": 50,
                "minSize": 0,
                "maxSize": 100,
                "start": 0,
                "end": 50,
                "remainingSize": 50
            },
            {
                "id": "b",
                "size": 50,
                "minSize": 0,
                "maxSize": 100,
                "start": 50,
                "end": 100,
                "remainingSize": 50
            }
        ],
        "dir": "ltr"
    },
    "done": false,
    "tags": [],
    "nextEvents": [
        "POINTER_OVER",
        "FOCUS",
        "DOUBLE_CLICK",
        "SET_PANEL_SIZE"
    ],
    "changed": false
}