{
  "params": {
    "style": {
      "type": "choice",
      "options": [
        "victorian",
        "modern",
        "gas"
      ],
      "default": "victorian",
      "label": "Style",
      "describe": "victorian (lantern on a curled arm), modern (flat LED head on a long arm), gas (short post with a glass lantern on top)."
    },
    "height": {
      "type": "range",
      "min": 2.5,
      "max": 7,
      "step": 0.25,
      "default": 4,
      "label": "Height",
      "describe": "Pole height in metres. Parks use 3-4, roads 6-7."
    },
    "arms": {
      "type": "choice",
      "options": [
        1,
        2
      ],
      "default": 1,
      "label": "Arms",
      "describe": "One arm, or two arms back to back for the middle of a square."
    },
    "finish": {
      "type": "choice",
      "options": [
        "iron",
        "green",
        "brass",
        "white"
      ],
      "default": "iron",
      "label": "Finish",
      "describe": "Pole paint: iron (black), green (park green), brass, white."
    }
  },
  "presets": {
    "park lamp": {
      "style": "victorian",
      "finish": "green",
      "height": 3.5,
      "arms": 2
    },
    "highway light": {
      "style": "modern",
      "height": 7,
      "finish": "white"
    }
  },
  "night": {
    "lamp": {
      "zone": "lamp",
      "color": "#ffd38a",
      "intensity": 1.4,
      "describe": "Light source glows warm."
    }
  }
}