I apologize for posting this to two lists. However I posted this to the Fedora Testers list on August 17 and Rex Dieter was the only person to reply. I appreciate his help. But since it did not solve this situation I would like to ask this here with a slight modification.
In Rawhide (which should have been Branched to future Fedora 20 but now) with Xfce as the desktop the icons in the greeter have been missing, for me, for several weeks. Which means that they are missing in bothe the Fedora 20 Branch and in my Rawhide which is now to be Fedora 21. Would anyone happen to know what package provides them?