Themes for xpenguins: "The Simpsons", "Sonic the Hedgehog", "Winnie the Pooh", "Lemmings" and "Worms". These are distributed separately from the basic xpenguins package because they were created from animated gifs found on the web so the licensing/copyright situation is unclear, or, in the case of Lemmings, imitate copyrighted artwork. Type "xpenguins -l" to see a list of available themes.