I had an idea for a possible new feature: paint

When you dig out a room, it can have a lot of different colors because of the different types of stone. While I personally don't mind, I think it would be cool if we could paint the walls and floors. The idea is that the tile changes color when it's painted. Maybe the dwarfs could get a slight happiness boost in a painted room, similar to engraved rooms.

Along with this some new professions could be added, such as painter and paint maker etc. And new crops for different colors.

What are your thoughts?

EDIT: I'm aware that it's more dwarfy to paint your walls with dead elves and kittens.