Oh yikes, I missed that. They're pretty garish: https://www.apple.com/osx/preview/design/images/apps-gallery...

Eh... Wow! Looks like they decided the hell with it and installed xfce (http://cdn.xfce.org/frontpage/slider-desktop.jpg)

They remind me of KDEs oxygen theme. Outright scary.

I assume you mean the old, pre-4.7 design[1]? Interestingly, Oxygen itself ditched those for a less glossy design that had always reminded me of the (now old!) OSX icons. Not really sure what to make of that.

[1] http://icons.iconarchive.com/icons/oxygen-icons.org/oxygen/2...

[2] http://4.bp.blogspot.com/-Wemowf_4MrE/TjsIa4wrZeI/AAAAAAAAA1...