The PNG elements of MediaWiki quickly begin to look terrible as the zoom is increased in a browser (especially compared to the rest of Vector, which scales up very smoothly). Anything above 100% zoom results in noticeable pixelation.
This is especially relevant as high resolution monitors become more common, and users will need to increase zoom to make the overall scale of a wiki page be usable and look good.
The site logo is the worst offender. Other problem icons include:
*All the Notification icons
*The Search magnifying glass
*The Watchlist star
*The Wikilove heart
Version: unspecified
Severity: normal