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.",
  "examples": ["stick", { "textures": { "default": "stick" } }],
  "oneOf": [
    {
      "type": "string"
    },
    {
      "type": "object",
      "additionalProperties": true,
      "required": ["textures"],
      "properties": {
        "textures": {
          "title": "Textures",
          "description": "Contains key-value pairs of textures used by the item",
          "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."
            }
          }
        }
      }
    }
  ]
}