[Fedora-packaging] Packaging Guidelines for Desktop Applications

The Packaging Guidelines contain a section on the packaging of Desktop files: .desktop files and AppData files. However, I could not find any information on how to handle applications that work with application-specific documents[*]. For this there must be document icons and XML files installed under %{_datadir}/mime and %{_datadir}/icons. Maybe there is need for some %post processing? Are there any guidelines for this? *) Application specific documents e.g. a text processor that handles .doc files. The application has an icon, and the documents (all *.doc files) have their own icon.