Planet Coloring
From SporeWiki, the knowledge base dedicated to Spore
Planet coloring tools are used to change the color of a planet's atmosphere, ocean, or land. Once you have aquired the proper items, you can pick from these eight "flavors": blue, cyan, green, orange, pink, purple, red, or yellow. You can make any combination of colors you wish. However, one aspect of the planet can only be one color. Using more than one color on any one part of the planet will merely override the old one, as opposed to mixing them. You also can terra-color your home planet. The terrascore of the planet can influence the shade of the colour.
[edit] Acquiring
Three of them (Skies of Red, Purple Terra-Coloring, and Deep Blue Sea) will be given to you automatically if you choose the "I want to paint planets" mission from your homeworld.
The rest are found the same way as artifacts: by visiting a planet with yellow radar waves coming out of it, using the radar to locate the item, and then using your Abduction Beam to acquire it. They have the same appearance as terrasculpting tools, so you can't be sure what you will get.
