MyDimension

{
  "type": "mydimension:soaring_mind",
  "generator": {
    "type": "mydimension:soaring_islands",
    "biome_source": {
      "type": "minecraft:checkerboard",
      "biomes": [
        "minecraft:plains",
        "minecraft:forest",
        "minecraft:flower_forest",
        "minecraft:birch_forest",
        "minecraft:meadow",
        "minecraft:cherry_grove",
        "minecraft:snowy_plains",
        "minecraft:grove",
        "minecraft:desert",
        "minecraft:savanna",
        "minecraft:jungle",
        "minecraft:windswept_hills"
      ],
      "scale": 3
    }
  }
}