I love IMGUIs but you have to be careful with the to get them to play nice with the event loop. If you're using it for a game where you're drawing every frame a

I love IMGUIs but you have to be careful with the to get them to play nice with the event loop. If you're using it for a game where you're drawing every frame anyways, they're great. But for something that the user might keep running alongside other apps they can be a cpu/memory hog. You can of course only process/redraw when an event happens but that can be easier said than done sometimes.