{
  "params": {
    "style": {
      "type": "choice",
      "options": [
        "smooth",
        "stepped"
      ],
      "default": "smooth",
      "label": "Style",
      "describe": "smooth (true pyramid with flat polished casing faces, like Giza) or stepped (six receding tiers, like the earliest step pyramid at Saqqara)."
    },
    "size": {
      "type": "range",
      "min": 10,
      "max": 230,
      "step": 5,
      "default": 60,
      "label": "Base width",
      "describe": "Width of the square base in metres. Height follows: 0.64 x base for smooth, 0.55 x base for stepped. 230 is the Great Pyramid, 60 a queen's pyramid, 10 a small tomb."
    },
    "ruin": {
      "type": "range",
      "min": 0,
      "max": 1,
      "step": 0.05,
      "default": 0,
      "label": "Ruin",
      "describe": "0 is newly finished with every casing stone in place; 0.4 is how the Giza pyramids look today (casing stripped, core steps showing, summit lost); 1 is a weathered heap with rubble all around."
    },
    "casing": {
      "type": "choice",
      "options": [
        "limestone",
        "sandstone",
        "weathered",
        "granite"
      ],
      "default": "limestone",
      "label": "Casing stone",
      "describe": "Colour of the outer casing: limestone (bright white-cream, as built), sandstone (warm gold), weathered (dusty tan) or granite (red granite lower courses, like the third Giza pyramid)."
    },
    "capstone": {
      "type": "toggle",
      "default": true,
      "label": "Capstone",
      "describe": "Gilded pyramidion capping the summit of a smooth pyramid. It only shows while the summit is intact (ruin below 0.15)."
    }
  },
  "presets": {
    "great pyramid today": {
      "style": "smooth",
      "size": 230,
      "ruin": 0.4,
      "casing": "weathered",
      "capstone": false
    },
    "gleaming new tomb": {
      "style": "smooth",
      "size": 80,
      "ruin": 0,
      "casing": "limestone",
      "capstone": true
    },
    "step pyramid of saqqara": {
      "style": "stepped",
      "size": 120,
      "ruin": 0.35,
      "casing": "sandstone"
    }
  },
  "night": null
}