Hello. It is me again. In my plugin I am using a CustomWidget object to initialize OpenGL context and to render my stuff in there and it works like magic. But there seems to be one thing I can't quite get. Every time this widget recieves a callback - be it mouse enter callback or click callback or whatever it resets whole widget to black color. I've been struggling to disable this, but to no avail. Currently I'm spamming widget with my OGL render function so that it won't reset, but it still results in black background flickering. Is there a way to do this that I didn't spot? I'm using CORE 0.5.4 with Illustrator CC 17.