I want the player to be able to draw a simple symbol, even if it's pixelated black or white, that their character can have on their weapons, armour, forehead or even markers and monuments. How would I go about that, if I want to do it? Better if the suggestion is C#/Unity-specific.
PS: The game would be a turn-based, square grid RPG, maybe somewhat like Dofus, but it should probably be in 3D to allow for more flexibility.