Add the software source ppa:martin.von.wittich/libwnck-nodimming to your computer and run sudo apt-key adv --keyserver subkeys.pgp.net --recv-keys C26F50B5 ; then start update-manager, check for updates and install them. After you relogin, the icons should no longer be greyed out.
This will of course be reverted as soon as Ubuntu releases another update for libwnck, but I'll try to keep at it and patch the updates too.
I've posted a patch on the GNOME bugtracker, and I also created a PPA that contains the patched package: https:/ /launchpad. net/~martin. von.wittich/ +archive/ libwnck- nodimming
Add the software source ppa:martin. von.wittich/ libwnck- nodimming to your computer and run sudo apt-key adv --keyserver subkeys.pgp.net --recv-keys C26F50B5 ; then start update-manager, check for updates and install them. After you relogin, the icons should no longer be greyed out.
This will of course be reverted as soon as Ubuntu releases another update for libwnck, but I'll try to keep at it and patch the updates too.