{
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    {
      "name": "LayoutView #document",
      "bounds": [800, 600],
      "drawsContent": false,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "Scrolling Layer",
      "bounds": [800, 600],
      "drawsContent": false
    },
    {
      "name": "Scrolling Contents Layer",
      "bounds": [800, 600],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF",
      "paintInvalidations": [
        {
          "object": "LayoutGrid DIV id='container'",
          "rect": [0, 52, 200, 300],
          "reason": "geometry"
        },
        {
          "object": "LayoutNGBlockFlow DIV class='item1'",
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        },
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          "object": "LayoutNGBlockFlow DIV class='item1'",
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}