{
    "type": "minecraft:delta_feature",
    "config": {
        "contents": {
            "Name": "minecraft:grass_block",
            "Properties": {
                "snowy": "false"
            }
        },
        "rim": {
            "Name": "minecraft:mud"
        },
        "size": {
            "type": "minecraft:uniform",
            "min_inclusive": 8,
            "max_inclusive": 10
        },
        "rim_size": 0
    }
}