Not quite sure what your definition of a “sane language” is. Pretty much all guis in the industry involve one of those three to some extent. Maybe look into Sk

Not quite sure what your definition of a “sane language” is. Pretty much all guis in the industry involve one of those three to some extent. Maybe look into Skia, it’s Googles abstraction layer for multiple graphics libraries on multiple platforms. But if you are just learning, I wouldn’t concern yourself with any of those sort of environment conditions, just figure out how to make something that works on your preferred OS. For example, if you use Windows, learn 2d rendering with direct x. Learn about event handlers for controller interaction. And of course read about MVC.