Since BackTrack4 brings many programs using GTK + graphics libraries I think it would be cool to try to improve the look of these applications under the KDE environment.

I am no expert in KDE but searching in google I found that gtk-qt-engine-kde3 package allows you display a GTK+ app like a Qt app.

Before:

Code:
hxxp://img515.imageshack.us/img515/4069/snapshot3.png
After:

Code:
hxxp://img228.imageshack.us/img228/9523/snapshot4.png
How enable this feature?
- Install gtk-qt-engine-kde3 of backtrack repos
- Go to Settings -> Appearance & Themes -> GTK Styles and Fonts

I don't know if there are any other tool like gtk-qt-engine-kde3.