{
  "params": {
    "size": {
      "type": "range",
      "min": 2,
      "max": 20,
      "step": 0.5,
      "default": 8,
      "label": "Size",
      "describe": "Length of the cloud in metres (it is about 0.45 as tall and 0.6 as deep)."
    },
    "puffs": {
      "type": "range",
      "min": 3,
      "max": 9,
      "step": 1,
      "default": 6,
      "label": "Puffs",
      "describe": "Number of rounded lobes: 3 is a small simple cloud, 9 a big billowing cumulus."
    },
    "mood": {
      "type": "choice",
      "options": [
        "day",
        "sunset",
        "dusk",
        "storm"
      ],
      "default": "day",
      "label": "Mood",
      "describe": "Colouring: day (white with a blue-grey belly), sunset (cream, peach and pink), dusk (lavender), storm (heavy grey)."
    },
    "flat": {
      "type": "toggle",
      "default": true,
      "label": "Flat base",
      "describe": "On gives the classic flat-bottomed cumulus; off lets the lower puffs hang round."
    },
    "seed": {
      "type": "range",
      "min": 1,
      "max": 50,
      "step": 1,
      "default": 2,
      "label": "Seed",
      "describe": "Changes the arrangement and size of the puffs. Scatter several seeds for a sky."
    }
  },
  "presets": {
    "thunderhead": {
      "mood": "storm",
      "size": 16,
      "puffs": 9
    },
    "sunset wisp": {
      "mood": "sunset",
      "size": 6,
      "puffs": 4,
      "seed": 9
    },
    "little puff": {
      "size": 3,
      "puffs": 3
    }
  },
  "night": null
}