Image speaks itself. gimp-paint-studio package just got an metainfo needed for Gnome Software Center as add-on for Gimp based on related Richard Hughes' blog . The updated package will be shortly available in Rawhide and also in Fedora 21 updates-testing repository . It will not be included for Fedora 20 due to the preview release of Gnome Software lacking addons support. Next step will be contacting upstream adding that metainfo. Hopefully other add-ons maintainers for applications such as Inkscape and Blender will do the same to bring a richful experiences to users.