Wikipedia
MyColors
MyColors is a digital distribution platform for themes developed by Stardock. It allows users to skin the Windows graphical user interface. Sets of themes have been made in partnership with GM, Ford, HP, Dell, the NHL, NBA, and NCAA.
MyColors was created so that users could purchase and apply themes without having to worry about the underlying software. The themes are encrypted to reduce piracy. Individual parts can be mixed to create a custom theme with the corresponding Object Desktop software.
MyColors works on Windows XP and above, and is certified for Windows 7.