function tab_plugins_draw(htab: ui_handle_t) {
	if (ui_tab(htab, tr("Plugins"))) {

		ui_begin_sticky();

		let row: f32[] = [ -100 ];
		ui_row(row);

		if (ui_icon_button(tr("Preferences"), icon_t.COG)) {
			box_preferences_htab.i = preference_tab_t.PLUGINS;
			box_preferences_show();
		}
		ui_end_sticky();

		// Draw plugins
		let keys: string[] = map_keys(plugin_map);
		for (let i: i32 = 0; i < keys.length; ++i) {
			let p: plugin_t = map_get(plugin_map, keys[i]);
			if (p.on_ui != null) {
				js_call(p.on_ui);
			}
		}

		/// if is_debug
		let rt_keys: string[] = map_keys(render_path_render_targets);
		array_sort(rt_keys, null);
		for (let i: i32 = 0; i < rt_keys.length; ++i) {
			let rt: render_target_t = map_get(render_path_render_targets, rt_keys[i]);
			ui_text(rt_keys[i]);
			ui_image(rt._image);
		}
		/// end
	}
}

function plugin_uv_unwrap_button() {
	let cb: any = map_get(util_mesh_unwrappers, "uv_unwrap.js"); // JSValue * -> (a: raw_mesh_t)=>void
	for (let i: i32 = 0; i < project_paint_objects.length; ++i) {
		let md: mesh_data_t  = project_paint_objects[i].data;
		let mesh: raw_mesh_t = {posa : md.vertex_arrays[0].values, nora : md.vertex_arrays[1].values, texa : null, inda : md.index_array};
		js_call_ptr(cb, mesh);
		md.vertex_arrays[0].values = mesh.posa;
		md.vertex_arrays[1].values = mesh.nora;
		md.vertex_arrays[2].values = mesh.texa;
		md.index_array             = mesh.inda;
		mesh_data_build(md);
	}
	util_mesh_merge();
}