Before:
{
  "layers": [
    {
      "name": "Scrolling background of LayoutView #document",
      "bounds": [785, 802],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutNGBlockFlow (relative positioned) DIV id='to-animate1' class='box animating1'",
      "bounds": [100, 100],
      "contentsOpaque": true,
      "backgroundColor": "#0000FF",
      "transform": 2
    },
    {
      "name": "LayoutNGBlockFlow (relative positioned) DIV class='container'",
      "position": [46, 230],
      "bounds": [146, 452],
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutNGBlockFlow (relative positioned) DIV class='box gray force-layer'",
      "bounds": [100, 100],
      "contentsOpaque": true,
      "backgroundColor": "#808080",
      "transform": 4
    },
    {
      "name": "LayoutNGBlockFlow (relative positioned) DIV class='box yellow'",
      "position": [18, 692],
      "bounds": [100, 100],
      "contentsOpaque": true,
      "backgroundColor": "#FFFF00"
    },
    {
      "name": "VerticalScrollbar",
      "position": [785, 0],
      "bounds": [15, 600],
      "contentsOpaque": true
    }
  ],
  "transforms": [
    {
      "id": 1,
      "transform": [
        [...],
        [...],
        [...],
        [...]
      ]
    },
    {
      "id": 2,
      "parent": 1,
      "transform": [
        [...],
        [...],
        [...],
        [...]
      ]
    },
    {
      "id": 3,
      "transform": [
        [...],
        [...],
        [...],
        [...]
      ]
    },
    {
      "id": 4,
      "parent": 3,
      "transform": [
        [...],
        [...],
        [...],
        [...]
      ]
    }
  ]
}

After:
{
  "layers": [
    {
      "name": "Scrolling background of LayoutView #document",
      "bounds": [785, 802],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutNGBlockFlow (relative positioned) DIV id='to-animate1' class='box animating1'",
      "bounds": [100, 100],
      "contentsOpaque": true,
      "backgroundColor": "#0000FF",
      "transform": 2
    },
    {
      "name": "LayoutNGBlockFlow (relative positioned) DIV class='container'",
      "position": [58, 230],
      "bounds": [122, 452],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutNGBlockFlow (relative positioned) DIV class='box gray force-layer'",
      "bounds": [100, 100],
      "contentsOpaque": true,
      "backgroundColor": "#808080",
      "transform": 4
    },
    {
      "name": "LayoutNGBlockFlow (relative positioned) DIV id='first-green-box' class='box green rotate-45deg'",
      "position": [46, 328],
      "bounds": [146, 344]
    },
    {
      "name": "LayoutNGBlockFlow (relative positioned) DIV class='box yellow'",
      "position": [18, 692],
      "bounds": [100, 100],
      "contentsOpaque": true,
      "backgroundColor": "#FFFF00"
    },
    {
      "name": "VerticalScrollbar",
      "position": [785, 0],
      "bounds": [15, 600],
      "contentsOpaque": true
    }
  ],
  "transforms": [
    {
      "id": 1,
      "transform": [
        [...],
        [...],
        [...],
        [...]
      ]
    },
    {
      "id": 2,
      "parent": 1,
      "transform": [
        [...],
        [...],
        [...],
        [...]
      ]
    },
    {
      "id": 3,
      "transform": [
        [...],
        [...],
        [...],
        [...]
      ]
    },
    {
      "id": 4,
      "parent": 3,
      "transform": [
        [...],
        [...],
        [...],
        [...]
      ]
    }
  ]
}