{
  "params": {
    "scheme": {
      "type": "choice",
      "options": [
        "rescue",
        "news",
        "charcoal",
        "olive",
        "white"
      ],
      "default": "rescue",
      "label": "Scheme",
      "describe": "Paint: rescue (red with a white stripe, air ambulance), news (blue and white), charcoal (dark grey with an orange stripe, corporate), olive (drab utility, no markings), white (white with a teal stripe, tour or private)."
    },
    "blades": {
      "type": "range",
      "min": 2,
      "max": 5,
      "step": 1,
      "default": 4,
      "label": "Main blades",
      "describe": "Number of main rotor blades, 2 to 5. Two is a light trainer, four or five a bigger utility machine."
    },
    "floats": {
      "type": "toggle",
      "default": false,
      "label": "Floats",
      "describe": "Swap the landing skids for inflatable pontoons, for landing on water."
    },
    "searchlight": {
      "type": "toggle",
      "default": true,
      "label": "Searchlight",
      "describe": "A swivelling searchlight under the nose that shines at night. Off for a plain cabin."
    },
    "size": {
      "type": "range",
      "min": 0.6,
      "max": 1.5,
      "step": 0.05,
      "default": 1,
      "label": "Size",
      "describe": "Uniform scale. 1 is about 10 m long with a 10.6 m rotor; 0.6 is a two-seat trainer, 1.5 a heavy utility helicopter."
    }
  },
  "presets": {
    "air ambulance": {
      "scheme": "rescue",
      "blades": 4,
      "searchlight": true
    },
    "sea patrol": {
      "scheme": "white",
      "floats": true,
      "blades": 5,
      "size": 1.2
    },
    "bush trainer": {
      "scheme": "olive",
      "blades": 2,
      "searchlight": false,
      "size": 0.7
    }
  },
  "night": {
    "nav": {
      "zone": "nav",
      "intensity": 1.6,
      "describe": "Navigation lights: red on the left stabiliser tip, green on the right."
    },
    "beacon": {
      "zone": "beacon",
      "color": "#ff4636",
      "intensity": 1.8,
      "describe": "Red anti-collision beacons on the cowling and under the belly."
    },
    "lamp": {
      "zone": "lamp",
      "color": "#fff3c8",
      "intensity": 2.2,
      "describe": "The searchlight and landing light under the nose."
    },
    "cabin": {
      "zone": "cabin",
      "color": "#9fcfff",
      "intensity": 0.3,
      "describe": "A faint instrument glow behind the canopy."
    }
  }
}