{
  "params": {
    "bays": {
      "type": "range",
      "min": 2,
      "max": 5,
      "step": 1,
      "default": 3,
      "label": "Bays",
      "describe": "Width in 5.5 m bays, 2 to 5 (11 to 27.5 m). Each bay gets a tall window between pilasters; the loading door takes the middle bay."
    },
    "walls": {
      "type": "choice",
      "options": [
        "brick",
        "concrete",
        "metal"
      ],
      "default": "brick",
      "label": "Walls",
      "describe": "brick (red brick courses, stone dressings, arched window heads, green steel), concrete (precast panels, flat heads, orange door), metal (blue ribbed cladding, yellow door)."
    },
    "roof": {
      "type": "choice",
      "options": [
        "sawtooth",
        "gable",
        "flat"
      ],
      "default": "sawtooth",
      "label": "Roof",
      "describe": "sawtooth (three north-light teeth with glazed faces toward the front), gable (low pitch with a glazed ridge monitor), flat (parapet with skylights)."
    },
    "wear": {
      "type": "range",
      "min": 0,
      "max": 1,
      "step": 0.05,
      "default": 0.35,
      "label": "Wear",
      "describe": "Age and grime: 0 is freshly built; higher adds soot, rust and rain streaks under the sills and, above 0.5, broken panes."
    },
    "chimney": {
      "type": "toggle",
      "default": true,
      "label": "Smokestack",
      "describe": "A free-standing 17 m round brick smokestack with banded rings and a sooty crown behind the left corner."
    }
  },
  "presets": {
    "old brick mill": {
      "walls": "brick",
      "roof": "sawtooth",
      "bays": 4,
      "wear": 0.7
    },
    "concrete works": {
      "walls": "concrete",
      "roof": "gable",
      "chimney": false,
      "wear": 0.2
    },
    "tin shed plant": {
      "walls": "metal",
      "roof": "flat",
      "bays": 2,
      "chimney": false,
      "wear": 0.5
    }
  },
  "night": {
    "window": {
      "zone": "window",
      "color": "#ffd28a",
      "intensity": 1.2,
      "describe": "Windows and roof glazing glow warm after dark (the night shift)."
    },
    "lamp": {
      "zone": "lamp",
      "color": "#ffe7b0",
      "intensity": 1.6,
      "describe": "Gooseneck lamps over the loading door and the side door."
    }
  }
}