I'd like to submit a new patch for gnubiff.
This patch adds an option for the popup - "show in taskbar". When
checked, the popup appears in the taskbar (e.g. in the Gnome panel),
which is what it does by default now. If unchecked, the popup merely
appears on the desktop, but doesn't show up as a window in the taskbar -
behaviour that I find distracting and unintuitive (although opinions may
vary, of course ;-).
If you accept my patch, the indenting of the preferences.glade XML may
need looking at - I'm not sure what your conventions are.
Thanks for the good work on gnubiff!