GNOME Bugzilla – Bug 673840
progress cell renders in backdrop are not readable
Last modified: 2012-04-10 16:38:17 UTC
Progress cell renderers in backdrop mode are now totally white, making it impossible to read their current progress. This can be seen for instance using the "Transmission" application. I am not sure if this is intentional or simply a bug (given that they are not so common and they are not in widget-factory maybe they were simply never noticed). Either way, I think that being able to see the current progress is useful since it allows the user to glance at the current state (either in a background window or in the gnome-shell overview without having to bring the window forward. That said I also think that in backdrop mode they should be subtle and not use the "blue" color... what about gray?
This was not intentional...if you look at the backdrop state for non-cellrenderer progress bars, it uses different colors. I now fixed it (together with a bunch of other related GtkCellRendererProgress issues) in git master and gnome-3-4.