{
  "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"
    },
    "CH2O": {
      "range": [0, 100],
      "color": ["#90EE90", "#006400"],
      "unit": "ppb"
    },
    "PM1": {
      "range": [0, 20],
      "color": ["#E6E6FA", "#800080"],
      "unit": "µg/m³"
    },
    "PM2.5": {
      "range": [0, 55],
      "color": ["#FFB6C1", "#FF0000"],
      "unit": "µg/m³"
    },
    "PM10": {
      "range": [0, 150],
      "color": ["#FFDDC1", "#FF1493"],
      "unit": "µg/m³"
    }
  }
}