Enhance standalone previewer to optionally apply cystom CSS
Submitted by John Stowers
Link to original bug (#651765)
Description
You may have seen gedit-cossa - a CSS editor with preview functionality.
http://blogs.gnome.org/carlosg/2011/05/28/introducing-cossa-a-gtk-theme-previewer-for-gedit/
It seems sensible to add similar functionality to the glade standalone previewer. The following commit
http://git.gnome.org/browse/gedit-cossa/commit/?id=702c1d53c1918bcb34af70aa50d312cc6f4a6406
watches a css file and restyles the whole widget heirarchy when the file changes.