(
    label: "Concrete",
    material: (
        base_color: (r: 0.55, g: 0.54, b: 0.52, a: 1.0),
        metallic: 0.0,
        roughness: 0.85,
        base_color_texture: None,
        normal_map_texture: None,
        metallic_roughness_texture: None,
        material_asset_path: None,
    ),
)