{
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    {
      "bounds": [800, 600],
      "contentsOpaque": true,
      "drawsContent": true,
      "children": [
        {
          "position": [0, 100],
          "bounds": [200, 200],
          "contentsOpaque": true,
          "drawsContent": true,
          "backgroundColor": "#0000FF",
          "paintInvalidations": [
            {
              "object": "LayoutBlockFlow (positioned) DIV",
              "rect": [0, 0, 200, 200],
              "reason": "full"
            },
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              "object": "LayoutBlockFlow (positioned) DIV",
              "rect": [185, 0, 15, 200],
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            },
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              "object": "LayoutBlockFlow (positioned) DIV",
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}