[suggestion] adding custom private calls background image

I don't know if it has been suggested already but in case it has not, I'll go ahead and do it. Since the new Discord update, the way profile pictures now look in private calls have been changed, they now have a square around them, I personally like the way it looks, but thought it would be better if you could add a custom "background" image in that square, kind of like you do for your profile picture, for now this square takes the colors of you profile picture and fills the square with it, to me it looks a little bit "flat", and adding a custom image as some sort of background could make it look pretty nice.