Request for sprites: Themed worlds!

[Haine]

Some sprites in ss13 are from other games and such, admittedly, but those are being replaced as people get to them. I think I'm speaking the coding team's overall feelings when I say, we don't wanna add more sprites that're ripped from other games, heavily edited or not. The effort is appreciated, Sundance, but try to avoid doing stuff like that in the future, especially the part where you didn't initially mention there were edited sprites in the bunch you were submitting.