fill_loft.item.json

{
    "format_version": "1.21.80",
    "minecraft:item": {
        "description": {
            "identifier": "wedit:fill_loft"
        },
        "components": {
            "minecraft:icon": {
                "textures": { "default": "wedit:fill_loft" }
            },
            "minecraft:max_stack_size": 1,
            "minecraft:throwable": {}
        }
    }
}