Iv’e been struggling to find a easy way to get QT apps to look nice in Lxde, so far they looked like Win 95 did.
A user request motivated me to fix tomahawk. After it was done, it looked like crap. So decided to hunt down and find a solution to get Lxde theme to work with QT applications too. After awhile, I found a great and easy solution. This is probably not an issue in Gnome or Xfce.
Open terminal and write:
Choose GTK+ in “Select GUI Style
Choose File > Save and close it.
Now your QT applications will look normal.
Also updated wiki for this: http://www.foresightlinux.se/wiki-en/index.php?title=Lxde