Comment by kldg

This is a very neat design; it's quite complicated, but I don't see anything particularly unnecessary. I use DPI scaling, so I was impressed because it's something I tend to have a hassle with in testing frontends which need to be aware of dimensions of objects and calculate where the user's cursor is. The "close all" button in window manager is pretty good.

This will be good to study from, if nothing else for me personally. I appreciate that it's almost wholly unobfuscated.