id: CAVE
step: 2
length:
  min: 40
  max: 80
start:
  x: 1
  y: 0.25
  z: 1
  radius:
    multiply:
      x: 1
      y: 1
      z: 1
    min: 3
    max: 4
  height:
    min: 4
    max: 72
cut:
  top: 0
  bottom: 1
mutate:
  x: 1
  y: 3
  z: 1
  radius: 0.125
palette:
  inner:
    replace-blacklist: true
    replace:
      - "minecraft:air"
      - "minecraft:water"
      - "minecraft:lava"
      - "minecraft:bedrock"
      - "minecraft:ice"
    layers:
      - materials: { "minecraft:air": 1 }
        y: 255
      - materials: { "minecraft:lava": 1 }
        y: 8
  outer:
    replace-blacklist: false
    replace: [ ]
    layers:
      - materials: { "minecraft:stone": 1 }
        y: 255
  top:
    replace-blacklist: false
    replace: [ ]
    layers:
      - materials: { "minecraft:stone": 1 }
        y: 255
  bottom:
    replace-blacklist: false
    replace: [ ]
    layers:
      - materials: { "minecraft:stone": 1 }
        y: 255
shift:
  "minecraft:grass_block": [ "minecraft:dirt" ]
  "minecraft:mycelium": [ "minecraft:dirt" ]
  "minecraft:podzol": [ "minecraft:dirt" ]
  "minecraft:gravel": [ "minecraft:dirt" ]
  "minecraft:sand": [ "minecraft:dirt" ]
  "minecraft:coarse_dirt": [ "minecraft:dirt" ]

update: [ ]