Manually Changeable Controller Glyphs
This would really be incredibly useful to people who use Dualshock controllers, generic controllers, and other programs to get controller support in game. I personally use a DS3 controller and needed to use a program called BTHPS3 which allows me to use my controller by creating a virtual Xbox controller. This however means that Steam detects the controller as an Xbox controller and by default displays Xbox glyphs. I liked the implementation Aggrocrab's PEAK had where there was simply a button in the menu you could use to display PlayStation, Xbox, Switch, or generic buttons in the UI. Idk I just thought it would be really useful but until then I'll just deal with the wrong buttons on screen and try to remember what each button is.