Handle better panel applets.
Handle better panel applets.

A gradient was clobbering the background-color set in
the css rules for the panel applets. Fixes bug #641425,
reported by Bastien Nocera.

ChrisCummins/gnome-themes-standard,cosimoc/gnome-themes-standard,cosimoc/gnome-themes-standard,magcius/gnome-themes-standard,cosimoc/gnome-themes-standard,ChrisCummins/gnome-themes-standard,cosimoc/gnome-themes-standard,rgcjonas/adwaita-semidark,ChrisCummins/gnome-themes-standard,DoctorJellyface/gnome-themes-standard,magcius/gnome-themes-standard,rgcjonas/adwaita-semidark,rgcjonas/adwaita-semidark,magcius/gnome-themes-standard,DoctorJellyface/gnome-themes-standard,ChrisCummins/gnome-themes-standard,rgcjonas/adwaita-semidark,Distrotech/gnome-themes-standard,ChrisCummins/gnome-themes-standard,Distrotech/gnome-themes-standard