For Windows 8, may I suggest creating a better interface with colors customization? Such as like Synthetica visual styles skins for Java applications... Synthetica - Java Look And Feel
For example, the Synthetica BlackEye visual style skin is a very nice dark interface that Windows 7 currently cannot do. I know there are non official Windows 7 skins at deviantART, etc but most of those aren't very high quality and aren't professional looking.
Any chance of improving the interface with better colors customization in Windows 8?