eye candy

( /i:ยด kand`ee/, n.)

   [from  mainstream  slang  "ear  candy"] A display of some sort that's
   presented  to  {luser}s  to  keep  them  distracted while the program
   performs  necessary  background tasks. "Give 'em some eye candy while
   the  back-end {slurp}s that {BLOB} into core." Reported as mainstream
   usage among players of graphics-heavy computer games. We're also told
   this  term  is  mainstream slang for soft pornography, but that sense
   does not appear to be live among hackers.

[glossary]