window shopping n.
[US Geological Survey] Among users of WIMP environments like X or the Macintosh, extended experimentation with
new window colors, fonts, and icon shapes. This activity can take
up hours of what might otherwise have been productive working
time. "I spent the afternoon window shopping until I found the
coolest shade of green for my active window borders -- now they
perfectly match my medium slate blue background." Serious window
shoppers will spend their days with bitmap editors, creating new
and different icons and background patterns for all to see. Also:
`window dressing', the act of applying new fonts, colors, etc.
See fritterware, compare macdink.