Yes, I use Raylib for toy games, and for toy apps. Raygui, the Raylib gui library, is an immediate-mode-gui. It doesn't seem to hog any resources for the frame

Yes, I use Raylib for toy games, and for toy apps. Raygui, the Raylib gui library, is an immediate-mode-gui. It doesn't seem to hog any resources for the frame updates, but I lower it for apps where I don't need very high refresh rates on state changes such as moving stuff around or changing an input in a dialog or text box. I've been playing with immediate-mode-guis for years (nuklear, imgui, etc.), so I wasn't sure what was novel about this. There are tricks to store scenegraphs and only update what changes, which pushes you away from true immediate mode anyway. I am more curious about how you render fonts at scale. Do they implement sub-pixel rendering or SDFs to achieve variable resolution clarity?