{
  "width": 600,
  "height": 400,
  "margin": {
    "t": 25,
    "b": 25,
    "l": 25,
    "r": 25
  },
  "grid": {
    "rows": 2,
    "columns": 2,
    "pattern": "independent"
  },
  "template": {
    "data": {
      "indicator": [
        {
          "title": {
            "text": "Speed"
          },
          "mode": "number+delta+gauge",
          "delta": {
            "reference": 90
          }
        }
      ]
    }
  }
}