{
  "layers": [
    {
      "name": "Scrolling Contents Layer",
      "bounds": [1200, 900],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutNGBlockFlow DIV id='masked'",
      "bounds": [600, 300],
      "backgroundColor": "#000000",
      "transform": 1
    },
    {
      "name": "Mask Layer",
      "bounds": [600, 300],
      "transform": 1
    }
  ],
  "transforms": [
    {
      "id": 1,
      "transform": [
        [1, 0, 0, 0],
        [0, 1, 0, 0],
        [0, 0, 1, 0],
        [15, 15, 0, 1]
      ]
    }
  ]
}