To change the color of a pet, there's either a Natural Colored Jelly Bean, which can change your pet's color a random one of seven of the eight hatchable colors (sepia, cream, black, ginger, silver, blonde, or albino), or there are Dye Kits, which can turn your pet any of eight dye colors (azure, lemon, indigo, rose, lime, magenta, orchid, or amber).
However, both jelly beans and dyes are pretty expensive. Beans usually sell for about three million in user shops, while dyes can range from three million to ten million.
Oh, and don't be so impatient, silly. xD We don't really have a very active forum, so sometimes it takes a couple hours to get a reply.