I think it would be a nice idea to expose the player's currently set UI colors to Udon, so prefabs and Udon scripts could colorize things like accents, World UIs and even pickups, adding additional personalization that not only effects the players menu, but the world as well. It could also make the user experience more consistent, for example, If the user has a "Light Mode" type color scheme, the UI in things that use this feature would also be light themed. Or if your favorite color is Orange and your scheme uses different shades of orange, A pickup using this feature would change to that color when the user picks it up. Therefore, my point is I think this feature would be a nice and fun addition to Udon that would expand on the VRC+ only feature, and also make the feature more worth a benefit to get VRC+ for more personalization other then the QM/Big Menus.