{
  "params": {
    "rows": {
      "type": "range",
      "min": 2,
      "max": 5,
      "step": 1,
      "default": 3,
      "label": "Rows",
      "describe": "Rows of pupil desks from the board to the back, 2 to 5 (1.2 m apart)."
    },
    "columns": {
      "type": "range",
      "min": 2,
      "max": 5,
      "step": 1,
      "default": 4,
      "label": "Columns",
      "describe": "Desks per row, 2 to 5, with 60 cm aisles between them. Rows x columns is the class size."
    },
    "board": {
      "type": "choice",
      "options": [
        "white",
        "chalk"
      ],
      "default": "white",
      "label": "Board",
      "describe": "white (whiteboard with coloured marker diagrams and a marker tray) or chalk (dark green chalkboard in a wooden frame with chalk marks)."
    },
    "color": {
      "type": "choice",
      "options": [
        "wood",
        "blue",
        "green",
        "orange"
      ],
      "default": "blue",
      "label": "Chairs",
      "describe": "Colour of the pupil chairs and the teacher chair: wood (beech plywood), blue, green or orange plastic."
    },
    "wall": {
      "type": "toggle",
      "default": true,
      "label": "Wall",
      "describe": "A 2.7 m wall section behind the board with a skirting board and a clock. Off puts the board on a mobile stand with castors."
    }
  },
  "presets": {
    "maths lesson": {
      "rows": 3,
      "columns": 4,
      "board": "white",
      "color": "blue",
      "wall": true
    },
    "old schoolhouse": {
      "rows": 4,
      "columns": 3,
      "board": "chalk",
      "color": "wood",
      "wall": true
    },
    "exam hall": {
      "rows": 5,
      "columns": 5,
      "board": "white",
      "color": "green",
      "wall": false
    }
  },
  "night": null
}