So far Lubuntu 12.04 Precise Pangolin turned out really great. But there's always that one thing, my VLC media player looks strange and doesn't fit in with the rest of my operating system. Apparently Qt4 apps in Lubuntu doesn't pick up correct GTK theme. To fix this issue you just need to install
libgnome2-common package and restart your Qt4 application.
You can do something like this from terminal:
sudo apt-get install libgnome2-common
This command will install library necessary to fix this issue. Have fun!
Edit: The same thing applies to Xfce desktop from Xubuntu 12.04 Precise Pangolin. I've forgot to point out that you need to logout/login into your desktop environment to notice changes.
Due to current Gnome 3 and Unity madness I still use good old GNOME 2 based Linux operating systems like Centos 6 and Ubuntu 10.04 LTS on all my machines. When I need productivity I put on my Clearlooks theme. Clearlooks is simple and elegant theme engine for GTK+ used by default by GNOME desktop environment version 2. This is theme that has been around for years and if you have GNOME 2 on your machine you most likely have Clearlooks theme. A few years ago I've noticed a little bug with Java based applications. Basically when you switch to Clearlooks theme your Java applications loose menu borders. In this article I'm bringing workaround for missing menu borders on Java applications with Clearlooks GTK+ 2 theme.