That's really neat! ImGUI has got to be one of the most satisfying GUI libraries to use, its fast, versatile and looks absolutely beautiful, so spreading it to even weird places is great!

ImGUI is great, but i wouldn't call it "versatile", it's too rigid to be versatile

It's too focused on desktop (mouse/kb), and you can't really theme it other than its colors and shape of the edges, doesn't support animations and you can't style the font, it's pretty basic

Creating custom controls is a ton of work

Then you have libraries like this: https://lvgl.io/ (gh: https://github.com/lvgl/lvgl)

That's what i call a versatile GUI library