"description":"An index or expression for which frame of the icon to display. Default resolves to 0.",
"default":0
},
"legacy_id":{
"type":"string",
"title":"Texture",
"description":"Legacy texture id for older item icons."
},
"texture":{
"type":"string",
"title":"Texture",
"description":"The key from the resource_pack/textures/item_texture.json 'texture_data' object associated with the texture file Example: blaze_powder."