{
  "layers": [
    {
      "name": "Scrolling background of LayoutView #document",
      "bounds": [800, 600],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutBlockFlow DIV id='scroller'",
      "bounds": [185, 100],
      "drawsContent": false
    },
    {
      "name": "VerticalScrollbar",
      "position": [185, 0],
      "bounds": [15, 100],
      "contentsOpaque": true
    },
    {
      "name": "LayoutBlockFlow DIV id='scroller'",
      "bounds": [185, 210],
      "invalidations": [
        [0, 5, 15, 15]
      ]
    }
  ]
}