Some parts of the the theme don't work. The bar at the top of Control Panel is a white. The sidebar of Control Panel windows (e.g. Personalization) is also white. What kills this theme for me though is that it completely breaks MMC. So stuff like Device Manager, Group Policy Editor, Windows Firewall advanced settings, etc. is out of the question. I know this is the theme and not me because it also happens on a clean and isolated Windows 7 VM. Once I change themes MMC works again.