{
  "params": {
    "biome": {
      "type": "choice",
      "options": [
        "grass",
        "desert",
        "snow",
        "rock",
        "volcanic",
        "alien"
      ],
      "default": "grass",
      "label": "Biome",
      "describe": "Colours and decor. Shared by every Terrain piece so neighbours match: grass, desert, snow, rock, volcanic (ember rocks glow at night), alien (glowing bulbs and crystals)."
    },
    "relief": {
      "type": "range",
      "min": 0,
      "max": 1,
      "step": 0.05,
      "default": 0.45,
      "label": "Relief",
      "describe": "How bumpy the top is: 0 is perfectly flat, 1 gives soft mounds about 0.6 m high. Bumps always fade out before the edges."
    },
    "decor": {
      "type": "range",
      "min": 0,
      "max": 1,
      "step": 0.1,
      "default": 0.5,
      "label": "Decor",
      "describe": "Amount of small scatter (tufts, flowers, pebbles, cacti, snow lumps, ember rocks, glowing bulbs). 0 is a clean tile."
    },
    "cells": {
      "type": "range",
      "min": 1,
      "max": 3,
      "step": 1,
      "default": 1,
      "label": "Size",
      "describe": "Tile edge in 4 m grid cells: 1 = 4 x 4 m, 2 = 8 x 8 m, 3 = 12 x 12 m."
    },
    "seed": {
      "type": "range",
      "min": 1,
      "max": 50,
      "step": 1,
      "default": 4,
      "label": "Seed",
      "describe": "Changes the bumps and where the decor falls. Edges match for every seed."
    }
  },
  "presets": {
    "spring meadow": {
      "biome": "grass",
      "relief": 0.6,
      "decor": 0.9
    },
    "ash plain": {
      "biome": "volcanic",
      "relief": 0.3,
      "decor": 0.6,
      "seed": 9
    },
    "alien moor": {
      "biome": "alien",
      "relief": 0.8,
      "decor": 0.7,
      "seed": 17
    }
  },
  "night": {
    "lava": {
      "zone": "lava",
      "color": "#ff7a1a",
      "intensity": 1.6,
      "describe": "Lava (volcanic biome) and ember cracks glow orange."
    },
    "glow": {
      "zone": "glow",
      "intensity": 1.2,
      "describe": "Alien liquid, bulb plants and crystals glow in their own teal and pink."
    }
  }
}