JED 1.6.0+ - Flat Nether-like dimension

{
    "dimensions": [
        {
            "dim": -1,
            "override": true,
            "dimensiontype": {
                "id": -1,
                "name": "Flat Nether",
                "worldprovider": "WorldProviderSurfaceJED",
                "require_exact_match": true
            },
            "worldinfo_onetime": {
                "generatorName": "flat",
                "generatorOptions": "3;1*minecraft:bedrock,62*minecraft:netherrack,1*minecraft:soul_sand;8;"
            },
            "jed": {
                "CanRespawnHere": false,
                "RespawnDimension": 0,
                "CanSleepHere": "bed_explodes",
                "CanDoLightning": false,
                "CanDoRainSnowIce": false,
                "CanSpawnPeacefulMobs": false,
                "CloudRenderer": "DummyRenderer",
                "DisableDawnDuskColors": true,
                "HasXZFog": true,
                "IsSurfaceWorld": false,
                "MovementFactor": 8,
                "MusicType": "nether",
                "SkyRenderer": "DummyRenderer",
                "WeatherRenderer": "DummyRenderer",
                "FogColor": "ff3333",
                "SkyColor": "ff3333"
            }
        }
    ]
}