Taskbar icons are corrupted?

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http://crunchbang.org – For some reason, nearly all my tint2 icons are corrupted in some way. I can download a new app and there's a 95% chance it will look wrong. Here's a screenshot of some random applications that do this:Full image: http://i.imgur.com/oNBB6sK.jpgIcons in desktops, from left to right:TransmissionFirefox, TerminatorIcedoveTerminator, ThunarVirtualboxNautilus(None)DeaDBeef, NitrogenIn fact, there are only 2 apps that don't have screwed up icons: Deluge and Bitcoin-qt. What might be causing this? (HowTos)