{
  "heatmap": {
    "temp": {
      "range": [0, 50],
      "color": ["#0023F5", "#FF1C05"],
      "unit": "°C"
    },
    "humi": {
      "range": [15, 95],
      "color": ["#ADD8E6", "#00008B"],
      "unit": "%"
    },
    "CO2": {
      "range": [0, 5000],
      "color": ["#FFDAB9", "#FF8C00"],
      "unit": "ppm"
    },
    "CO": {
      "range": [0, 1000],
      "color": ["#FFFFE0", "#FFD700"],
      "unit": "ppm"
    }
  }
}