{
  "id": 1,
  "background": "DotGrid",
  "strokes": [
    {
      "id": 1,
      "color": [0.1, 0.2, 0.3, 1.0],
      "samples": [
        { "x": 100.0, "y": 200.0, "p": 0.5, "t": 1.0 },
        { "x": 110.0, "y": 210.0, "p": 0.6, "t": 1.1 }
      ]
    }
  ]
}