Thank you so much for that advice! I had to use the entry “input_menu_toggle_btn” but that did the trick! It would certainly be nice to be able to hotkey turning the color on and off since I’d rather play the pre-super Gameboy games in black and white but now that I have the retroarch menu mapped to my gamepad I am plenty happy I can just pop into that whenever I want and make the change manually. Thanks again!