I am getting the following warning from a program I have just converted from gtk 2 to gtk 3 :- (abook:58240): Gtk-WARNING **: 12:01:58.064: Theme parsing error: gtk.css:66:28: The :prelight pseudo-class is deprecated. Use :hover instead. How do I find what is causing the warning? I'm not using the prelight pseudo-class directly in my code anywhere. -- Chris Green ?