Consequently, that's in the Final release criteria:
https://fedoraproject.org/wiki/Fedora_13_Final_Release_Criteria
which means that if it's not met, the release doesn't go out. So, um, if
this has introduced any cases of missing icons in the system menus, that
will need to be fixed ASAP. On a quick scan through my menus I don't
immediately see any missing icons for apps that would be installed by
default, but I just thought I'd mention it.