I think there should be a station similar to the Soil Centrifuge where you would put in two colors from a terrain analyzer (e.g. blue and purple) and you would be able to manipulate those colors in certain ways. For example, you could combine the two colors to make a blue-violet color that you could use. You would also be able to add patterns with those two colors. Ideas that I have in mind include half blue half purple, diagonal streaks, polka dots, bricks, and a gradient between the two colors. This station would only require power to use other than the two terrain analyzers needed to combine colors and make patterns, because it is simply a cosmetic change and it would be unnecessary to require other resources.