[Glade-users] Notebook: new page was inserted without tab

[john at jcoppens.com (John Coppens)]

Hello people.

I had a default notebook with three tabs. I put a few things in them and wanted
to delete a page and insert a new page. All the actions went correctly, but when
I run the program I get:

> > > builder.add_from_file("pyfilter.glade")

(.:10897): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:57:14: Theming engine 'unico' not found
(.:10897): Gtk-WARNING **: Overriding tab label for notebook
(.:10897): Gtk-WARNING **: Overriding tab label for notebook

The first error about 'unico' is something I've been unable to solve, but does 
not seem to bother other apps. If I install unico, pretty much everything stops
working...

Now the problem is what follows. "Overriding tab label for notebook". I have no
idea what causes this. Again, this does not seem to be overly critical.

Any ideas?
John

Gtk-3.12.2, Glade 3.18.3.