“MyHumanity” for Pidgin is a subtle yet Tango-esque way to improve Pidgin’s contact list.
For comparison here are the default Pidgin icons against the “MyHumanity” icons: -
Sure this isn’t an earth-shatteringly dramatic change, but I really don’t like the “Shiny Smarties” look of the default buttons so these offer an elegantly pastel alternative.
Download them @ gnome-look.org
Install the MyHumanity folder in ~/.purple/themes