I don't have a switch yet so I wouldn't be able to test it but I remember that there are GB, GBC, and GBA emulators written in HTML5 and javascript for the switch. Anyone want to test those if they work?
...just make them high res and then scale them down later if they need to be a specific size..Probably a silly question, but what size are the icons on the home screen for games? Could be abit of fun making some custom icons for emulators as a mock-up idea.