minecraft-bedrock-json-schemas/source/behavior/items/format/components/icon.json

{
  "$id": "blockception.minecraft.behavior.items.minecraft:icon",
  "title": "Icon",
  "description": "The icon item componenent determines the icon to represent the item in the UI and elsewhere.",
  "type": "object",
  "additionalProperties": true,
  "required": ["default"],
  "properties": {
    "default": {
      "type": "string",
      "title": "Default Texture",
      "description": "The key from the resource_pack/textures/item_texture.json `texture_data` object associated with the texture file Example: blaze_powder."
    }
  },
  "examples": [
    {"default": "stick"}
  ]
}