{
    "name": "nether",
    "dimension-names": [
        "nether"
    ],
    "rain": false,
    "storm": false,
    "biome-selector": {
        "always": true
    },
    "regions": [
        {
            "name": "nether_caves",
            "sounds": [
                {
                    "name": "nether-cave",
                    "category": "cave",
                    "files": [
                        "ambientsounds:cave.cave1",
                        "ambientsounds:cave.cave2",
                        "ambientsounds:cave.cave3"
                    ],
                    "volume": 0.25,
                    "transition": 200
                }
            ]
        }
    ]
}