The gpk-application desktop file currently uses the icon name system-software-installer. That icon doesn't exist. What I find is the following: Tango: system-installer gnome: system-software-install Bluecurve: icon-install-software icon-naming-spec: nada That sucks quite a bit. Comparing to the existing system-software-update in the icon-naming-spec, system-software-install probably comes closest and is what we should pick. Also worth adding this to the list of to-be-added icon names for the icon-naming spec.
In F9 I'm currently using system-software-install, and in rawhide system-software-installer. The whole thing is a mess. I've sent a mail to the tango mailing list offering patches, and I'll see what i can do to standardise this upstream.
Seems to be there now.