{
  "params": {
    "height": {
      "type": "range",
      "min": 8,
      "max": 30,
      "step": 1,
      "default": 16,
      "label": "Height",
      "describe": "Height of the crystal tip in metres. 8 is a park sculpture, 30 a city-centre landmark. The garden base widens with it."
    },
    "crystal": {
      "type": "choice",
      "options": [
        "aqua",
        "amethyst",
        "citrine",
        "rose",
        "emerald"
      ],
      "default": "aqua",
      "label": "Crystal colour",
      "describe": "Colour of the crystal and of its night glow: aqua (sea-glass blue-green), amethyst (purple), citrine (golden yellow), rose (pink quartz), emerald (green)."
    },
    "petals": {
      "type": "range",
      "min": 3,
      "max": 8,
      "step": 1,
      "default": 5,
      "label": "Petals",
      "describe": "Number of curved white petals spiralling up around the crystal. 3 is open and airy, 8 a closed flower bud."
    }
  },
  "presets": {
    "rose bud": {
      "crystal": "rose",
      "petals": 8,
      "height": 12
    },
    "amethyst beacon": {
      "crystal": "amethyst",
      "petals": 4,
      "height": 26
    },
    "citrine sundial": {
      "crystal": "citrine",
      "petals": 6,
      "height": 10
    }
  },
  "night": {
    "core": {
      "zone": "core",
      "intensity": 1.5,
      "describe": "The crystal and the small shards at its feet glow in their own colour."
    },
    "lamp": {
      "zone": "lamp",
      "color": "#fff0c4",
      "intensity": 1,
      "describe": "Bollards along the path light up."
    }
  }
}