LoveUI
LoveUI is an imitation of a commercially available framework (for free). Adding to this framework is systematic, just subclass LoveUI.View and write your drawing and input handling code to create a new gui widget. Distributing input to various 'views' is systematic and formulaic. There is no overlapping, no mistakes; only one widget at a time can receive mouse/key inputs. And hopefully, it is simple to use, too.
