EyeCandy

Eye candy is a general term for visual effects designed to impress the user that may or may not add significant functionality. Examples include 3D effects, transparency, animation, shadows, etc.

Examples:
 * Many effects of KDE, Gnome or other Window Managers
 * Compiz


 * Some games could be considered eye-candy
 * BzFlag
 * PINGUS

Ear-candy is the same idea applied to audio:
 * Voice Synthesis
 * festival
 * Swift