Not too long ago, someone asked why we did not support dot net style in Qt. Although the name is a bit misleading, it means the look and feel that apps such as Office and Outlook currently use. These applications are like Qt based on the windows style engine, but for some of the components that the theme does not define they use a more fashionable gradient appearance.
To prove that Qt can actually support these styles, I wrote a plugin style for Qt 4.2. If there is sufficient interest we will of course consider making it available as a solution or even as a part of a future version of Qt.
Here is some eye candy:
And this is how it looks with the blue palette: