NaturesAura/src/main/resources/assets/naturesaura/blockstates/ancient_leaves.json

{
    "forge_marker": 1,
    "defaults": {
        "model": "minecraft:leaves",
        "textures": {
            "all": "naturesaura:blocks/ancient_leaves"
        },
        "transform": "forge:default-block"
    },
    "variants": {
        "normal": [{}],
        "inventory": [{}],
        "decayable": {
            "true": {},
            "false": {}
        },
        "check_decay": {
            "true": {},
            "false": {}
        }
    }
}