Mixed Layer Specification - CompactMods/CompactCrafting GitHub Wiki

The mixed layer type allows for full control over every space in the layer. You must defined each block explicitly.

{
    "type": "compactcrafting:mixed",
    "pattern": [
        ["C", "C", "C", "C", "C"],
        ["C", "-", "-", "-", "C"],
        ["C", "-", "D", "-", "C"],
        ["C", "-", "-", "-", "C"],
        ["C", "C", "C", "C", "C"]
    ]
}