{
  "params": {
    "bays": {
      "type": "range",
      "min": 3,
      "max": 10,
      "step": 1,
      "default": 6,
      "label": "Bays",
      "describe": "Number of 3.2 m bays along the front, each with a shop doorway in the back wall. 3 is a small market hall (about 10 m), 10 a grand stoa of 32 m."
    },
    "upper": {
      "type": "toggle",
      "default": false,
      "label": "Upper storey",
      "describe": "Adds a second storey: a gallery floor with a lighter upper colonnade and a stone balustrade between the columns, like the grand two-storey stoas."
    },
    "stalls": {
      "type": "range",
      "min": 0,
      "max": 6,
      "step": 1,
      "default": 3,
      "label": "Stalls",
      "describe": "Market stalls set up in front of the colonnade (never more than one per bay), each with an awning on four poles and seeded wares: amphorae, baskets of fruit, bread or cloth."
    },
    "awning": {
      "type": "choice",
      "options": [
        "madder",
        "indigo",
        "saffron",
        "undyed"
      ],
      "default": "madder",
      "label": "Awnings",
      "describe": "Colours of the stall awnings: madder (red and cream stripes), indigo (blue and cream), saffron (yellow and ochre) or undyed (plain linen)."
    },
    "stone": {
      "type": "choice",
      "options": [
        "marble",
        "limestone",
        "sandstone"
      ],
      "default": "limestone",
      "label": "Stone",
      "describe": "marble (bright white), limestone (cream) or sandstone (golden)."
    }
  },
  "presets": {
    "busy market day": {
      "bays": 7,
      "stalls": 6,
      "awning": "madder",
      "upper": false
    },
    "grand two-storey stoa": {
      "bays": 10,
      "upper": true,
      "stalls": 4,
      "awning": "indigo",
      "stone": "marble"
    },
    "quiet corner hall": {
      "bays": 3,
      "stalls": 1,
      "awning": "undyed",
      "stone": "sandstone"
    }
  },
  "night": {
    "lamp": {
      "zone": "lamp",
      "color": "#ffbe6b",
      "intensity": 1.3,
      "describe": "Oil lamps hanging at the stalls and lit shop doorways glow warm."
    }
  }
}