src/main/resources/assets/hm/recipes/colorwheelrecipe.json

{
    "type": "minecraft:crafting_shaped",

    "pattern":
    [
        "UBI",
        "BCB",
        "OBP"
    ],

    "key":
    {
        "B":
        {
            "item": "hm:bursting_grayscale_block"
        },

        "C":
        {
            "item": "hm:colorwheelcenter"
        },

        "U":
        {
            "item": "hm:colorwheelp1"
        },

        "I":
        {
            "item": "hm:colorwheelp2"
        },

        "O":
        {
            "item": "hm:colorwheelp3"
        },

        "P":
        {
            "item": "hm:colorwheelp4"
        }
    },

    "result":
    {
        "item": "hm:colorwheel",
        "count": 1
    }
}