i don't have a freedesktop bugzilla account but you should put in that bug where you found the icons. they must be sure about copyright before including them. if they don't know where the icons are coming from, who is the copyright holder and what is the license, they will certainly refuse to include them.
-- icons for EOG https://launchpad.net/bugs/42765 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs