Description of problem:
Currently window icons (the ones appearing in the taskbar) are taken form
/usr/share/pixmaps icons providing by application developers.
Instead, it would be better to use the icon theme system so that the launcher
icon and the taskbar icon are consistent.
Version-Release number of selected component (if applicable):
I agree with you, however this is one for bugzilla.gnome.org due to the
pervasiveness of the change. I or someone else may have already filed it
In fact, API has been added for this upstream, and there is some
momentum towards changing this in all apps (see desktop-devel-list
recently). I'm closing this since this seems to be handled upstream.