{
  "params": {
    "paint": {
      "type": "choice",
      "options": [
        "leaf",
        "sky",
        "sunset",
        "lilac",
        "teal"
      ],
      "default": "leaf",
      "label": "Paint",
      "describe": "Accent colour on the white body (skirt, stripe and doors): leaf (green), sky (blue), sunset (orange), lilac (purple), teal."
    },
    "cars": {
      "type": "range",
      "min": 1,
      "max": 3,
      "step": 1,
      "default": 2,
      "label": "Cars",
      "describe": "Number of 11 m cars coupled with gangways. 1 is a shuttle pod, 3 a 35 m city line train."
    },
    "beam": {
      "type": "toggle",
      "default": true,
      "label": "Beam",
      "describe": "Show the elevated concrete guide beam (6.5 m up) on white pylons with planted bases. Off gives the train alone, resting on its skirts."
    }
  },
  "presets": {
    "city line": {
      "paint": "sky",
      "cars": 3
    },
    "airport shuttle": {
      "paint": "teal",
      "cars": 1
    },
    "sunset express": {
      "paint": "sunset",
      "cars": 2
    }
  },
  "night": {
    "cabin": {
      "zone": "cabin",
      "color": "#ffe3a8",
      "intensity": 1,
      "describe": "The cabin windows and door windows glow warm."
    },
    "headlight": {
      "zone": "headlight",
      "color": "#f4fbff",
      "intensity": 1.3,
      "describe": "Light bars on the noses glow."
    }
  }
}