When I start any Qt app, I get this message in the terminal, and the Qt app doesn't use the same theme as my Gtk apps:
QGtkStyle was unable to detect the current GTK+ theme.
How do I make QGtkStyle detect my current GTK+ theme?
It seems that LXDE is using a settings daemon, and there is no gtkrc-2.0 file in my home folder.
Try with:
Also make sure you defined a theme in yout gtkrc-2.0 like this: