如何在HttpService响应回调返回之前延迟绘制屏幕组件？

I have a Group screen component with some Path elements inside. The Group has a (default) style, and the Path has a (default) stroke. When the program starts, (on initialize) loads from a server (via HTTPService) some data that includes different styles for the Group, and it may also include different color/width for the Path stroke. If the styles/stroke attributes are not included in the server response, then the component will be shown with the defaults. I have a Group screen component with some Path