I took the time a few years ago to learn a bit about how to use Autodesk Animator (it was released with a BSD license some ~10 years ago and can be downloaded l

I took the time a few years ago to learn a bit about how to use Autodesk Animator (it was released with a BSD license some ~10 years ago and can be downloaded legally for free these days). Was really impressed with the GUI. Just press a single key to open the menu that begins with that letter, then the first letter of the menu-item you want to use. They managed to use only words that begin with unique letters while still making a lot of sense. Plus some other single-key shortcuts. And many, to me, unusual design choices everywhere, but it all makes sense and is consistent in a way that after a few hours I was not bothered at all by the fact that nothing was like a modern GUI, and there was definitely nothing about using more modern GUI conventions I can think of that would make it more pleasant to work with. https://github.com/AnimatorPro/Animator-Pro https://github.com/AnimatorPro/Animator-Pro