It's highly optimized using hardware acceleration and like all Android live wallpapers, it automatically runs only as long as it is visible - it's no battery drain.
You can change the speed and enable a dither effect.
TO USE: Home -> Menu -> Wallpapers -> LiveWallpapers -> Four Colors
ATTENTION: these phones does not support live wallpapers: Samsung Galaxy GT-i5801, HTC Wildfire, Mytouch 3G Slide, Droid Eris 2.1
此版本中的新功能：- even smoother rendering in a few situations