If this is a suggestion then why not use suggestion subforum, if this is just asking for a clarification then you won't get an answer, of you are asking if it is technically possible then yes, it is, use the custom folder.
Game-Aesthetics:
Environment such as terrain or weather. (including rain, lightning, etc)
More colour items.
The creation of hundreds of different items or rewards, or obscure/silly rewards.
It won't work for toribash because so many people will changing the colors without paying the rigth ammount, as well there wouldn't Qi restriction everybody would be using "Black color as Void" without Qi restrction.
If you want more information you can go here and see some rules about things that won't happen: