Tabs turn black with default theme

[August Karlstrom]

Description: Ubuntu 12.04 LTS
Release: 12.04

gedit:
  Installed: 3.4.1-0ubuntu1
  Candidate: 3.4.1-0ubuntu1
  Version table:
 *** 3.4.1-0ubuntu1 0
        500 http://se.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

After launching Gedit, when I open a new tab the background of the two open tabs turn from gray to black making the tab titles impossible to read (see attached screenshot). Other GTK 3 applications like System Monitor, which also uses tabs, do not exhibit this problem. I use the Blackbox window manager and my GTK 3 settings look like this:

$ cat ~/.config/gtk-3.0/settings.ini
[Settings]
gtk-theme-name = Default
gtk-icon-theme-name = hicolor

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Steff (s-teff)]

Also affects sidebar of Evince 3.4.0 and gnome-disk-untility in Xubuntu 12.04

[Steff (s-teff)]

gnome-terminal also affected

[Sebastien Bacher (seb128)]

Thank you for your bug, that's not a gedit bug though but a theme bug

[August Karlstrom (fusionfile)]

How can it be a theme bug when other GTK 3 applications with tabs are OK? I just tried out the snippet at

http://www.eurion.net/python-snippets/snippet/Notebook%20close%20button.html

and it works and looks like it should. Let me also point out that the theme I use is the default hard coded ("no theme") Raleigh theme.

[Sebastien Bacher (seb128)]

The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software by following the instructions at https://wiki.ubuntu.com/Bugs/Upstream/GNOME. If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status. Thanks in advance.

[August Karlstrom (fusionfile)]

Bug 943682 is related.

[August Karlstrom (fusionfile)]

I've had a look at the source code of Gedit 3.4.1 and I can conclude that the notebook widget or its parent does not transparently inherit the gray background from its parent widget when a new tab is created.

[August Karlstrom (fusionfile)]

Disabling overlay scrollbars solved the problem for me:

gsettings set org.gnome.desktop.interface ubuntu-overlay-scrollbars false

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[jeremy-list (quick-dudley)]

Thanks August! I'm glad to finally be rid of the overlay scrollbars: I find them the opposite of user-friendly.

[Grzegorz G. (grzesiek1e5)]

Well, this bug was filed earlier than https://bugs.launchpad.net/ubuntu/+source/overlay-scrollbar/+bug/1059374 , but that one has more activity on it, so I'm marking this bug as a duplicate of that bug.