Right panel has a transparent background

[William Hua]

Launching gnome-tweak-tool and choosing a category on the left panel makes the right panel transparent.

[Lars Karlitski (larsu)]

When overlay-scrollbars is enabled...

[Launchpad Janitor (janitor)]

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

[hackel (hackel)]

This severely limits the usability of the tool! I've resorted to opening an about:blank in Firefox to position behind Tweak Tool any time I need to use it.

gnome-tweak-tool 3.10.1-2ubuntu1

[Launchpad Janitor (janitor)]

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

[Iain Lane (laney)]

Hmm, the patch along with the one from gtk+ <https://git.gnome.org/browse/gtk+/commit/?id=02ccfb5d62430590b11b2d3e34b6100e4a6ddcda> doesn't fix it for me - does it for you?

I also noticed that gtk3-widget-factory is also transparent. Is that the same?

[Mazen (mezen)]

same thing here under Ubuntu 14.10
gtk3 widget factory, gnome-tweak-tool and gnome-control-center backgrounds (some of the listed items) are transparent under gnome-fallback, and turn to black under gnome-shell. Even the second tab "resources" in gnome-system-monitor is transparent.
I turned the theme from Ambiance to Adwaita but the problem persists.

[Launchpad Janitor (janitor)]

This bug was fixed in the package ubuntu-themes - 14.04+15.04.20150320-0ubuntu1

---------------
ubuntu-themes (14.04+15.04.20150320-0ubuntu1) vivid; urgency=medium

  [ Alberts Muktupāvels ]
  * Add some style info for unity-greeter buttons. (LP: #1423542) (LP:
    #1423542)

  [ Iain Lane ]
  * Style geary's compose view to get a background with overlay-
    scrollbars added: Ambiance/gtk-3.0/apps/geary.css Radiance/gtk-
    3.0/apps/geary.css
  * Theme software-center's action bar so it gets a background. added:
    Ambiance/gtk-3.0/apps/software-center.css Radiance/gtk-
    3.0/apps/software-center.css

  [ Lars Uebernickel ]
  * Radiance: fix radio mark coloring in menus

  [ William Hua ]
  * Set the background on GtkStack widgets. (LP: #1285783)
 -- CI Train Bot <email address hidden> Fri, 20 Mar 2015 18:07:14 +0000

[Mantas Kriaučiūnas (mantas)]

Please backport the fix for gtk3 and ubuntu-themes gtk3-widget-factory (GtkStack widgets) to Ubuntu 14.04 LTS release - users still see buggy gnome-tweak-tool, gnome-control-center, gnome-system-monitor, etc. - backgrounds of some windows elements are transparent under gnome-fallback, and turn to black under gnome-shell :(

[Ahmed Kamal (ahmed-kamal200)]

Workaround :

$ gsettings set com.canonical.desktop.interface scrollbar-mode normal

It seems odd but this worked for me

[Deyan (dvdvideo123)]

The issue is fixed by applying the following procedure
https://askubuntu.com/questions/1135170/ubuntu-19-04-gnome-3-32-how-to-get-dynamic-transparency-to-dock-and-top-bar

[Daniel van Vugt (vanvugt)]

I don't think that link is relevant here. See the screenshot in comment #1.