{
  "layers": [
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      "bounds": [800, 2016],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF",
      "transform": 1
    },
    {
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      "contentsOpaque": true,
      "backfaceVisibility": "hidden",
      "backgroundColor": "#FF0000",
      "transform": 2
    },
    {
      "name": "LayoutBlockFlow HTML",
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      "transform": 1
    },
    {
      "name": "LayoutBlockFlow (positioned) DIV",
      "bounds": [100, 100],
      "contentsOpaque": true,
      "backgroundColor": "#008000",
      "transform": 3
    },
    {
      "name": "VerticalScrollbar",
      "position": [796, 0],
      "bounds": [4, 600]
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