Use createPanel() in helper.py.

helper.py

@@ -420,7 +420,7 @@ struct {identifier} : Module {{"""
 struct {identifier}Widget : ModuleWidget {{
 	{identifier}Widget({identifier}* module) {{
 		setModule(module);
-		setPanel(APP->window->loadSvg(asset::plugin(pluginInstance, "res/{slug}.svg")));
+		setPanel(createPanel(asset::plugin(pluginInstance, "res/{slug}.svg")));
 
 		addChild(createWidget<ScrewSilver>(Vec(RACK_GRID_WIDTH, 0)));
 		addChild(createWidget<ScrewSilver>(Vec(box.size.x - 2 * RACK_GRID_WIDTH, 0)));