model data / item data

[frank stag]

The plugin i am using doesnt support item data, is there possible way to have my icon to be shown in menus? i dont care if can be held or just for menus. please let me know how.

[tiny python]

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[frank stag]

i am using 1.21.4

[frank stag]

i found this free custom model template thats compatible with 1.21.4, https://www.curseforge.com/minecraft/texture-packs/example-custom-model-data

and i found a very different json in their models directory

{
  "model": {
    "type": "select",
    "property": "custom_model_data",
    "fallback": {
      "type": "model",
      "model": "block/dirt"
    },
    "cases": [
      {
        "when": "hat",
        "model": {
          "type": "model",
          "model": "item/hat"
        }
      }
    ]
  }
}```
i wonder how to receive this item? like whats the command to receive this custom model. the maker of this is offline so maybe here can help me while he's away.