src/main/resources/assets/hm/recipes/colorwheelp1recipe.json

{
    "type": "minecraft:crafting_shaped",

    "pattern":
    [
        "GGG",
        "GIO",
        "GPB"
    ],

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

        "G":
        {
            "item": "hm:grayscale_block"
        },

        "I":
        {
            "item": "minecraft:magenta_dye"
        },

        "O":
        {
            "item": "minecraft:pink_dye"
        },

        "P":
        {
            "item": "minecraft:purple_dye"
        }
    },

    "result":
    {
        "item": "hm:colorwheelp1",
        "count": 1
    }
}