JED 1.6.0+ - Superflat with BoP biomes, caves, decoration

{
    "dimensions": [
        {
            "dim": 123,
            "dimensiontype": {
                "id": 123,
                "name": "BoP flat",
                "keeploaded": false,
                "worldprovider": "WorldProviderSurfaceJED",
                "require_exact_match": true
            },
            "chunkgenerator": "ChunkGeneratorFlatJED",
            "worldinfo_onetime": {
                "generatorName": "BIOMESOP",
                "generatorOptions": "3;minecraft:bedrock,58*minecraft:stone,4*minecraft:dirt,minecraft:grass;1;caves,decoration"
            }
        }
    ]
}