Dark Empire was an early MOD that used batch transformations to edit a ton of buildings at once. They really don't get the credit they deserve. I mean, red shift? Pure genius. If you are living on a red planet everything you own will eventually get covered in red. Its just the way of things. I bought gray furniture because 1) I have a white cat and a black cat and 2) I do what my wife tells me to do. As for blue shift, well those people just have a lot of blue paint.
On that note, here is Dark Empire. It is My Colony as seen from the evil side of the looking glass.