Mark controllers as supported in settings. (D input)
I connected my 8BitDo Ultimate 2 Wireless controller in D-Input mode today because I wanted to use the extra buttons. I'm used to manually setting up D-Input controllers, but I was surprised to see that all buttons, even the extra ones, were already supported!!!! Even the 8BitDo heart Icon was visible instead of the Xbox/Steam Icon!

I’d love to see some kind of icon or checkmark next to the controller icon in the steam input settings to indicate when it’s running in a fully supported level.

Additionally, instead of hiding the controller selection tab when only one controller is connected, it would be helpful to still show that single controller at the top, along with its Steam Input support status even if that is a simple checkmark.