xpenguins-xtrathemes (extra themes for xpenguins)

The graphics in these themes come from various classic video
games and animated TV shows. Included themes: Lemmings, M.U.L.E.,
Megaman, Sonic_the_Hedgehog, The_Simpsons, Turkeys, Walking_Man,
Winnie_the_Pooh, Worms, XSheep.
