To add an application to the GNOME desktop, perform the following steps:
Add a menu item for the application. For more information on how to add an item to a menu, see Chapter 2.
Add an icon for the application to /usr/gnome/share/icons/theme_name/icon_size/apps. For more information on icons and themes, see Installing Themes.
If the application uses a new MIME type, add a file content sniffer for the new MIME type. For more information on file content sniffers, see File Content Sniffers.
If the application uses a new MIME type, add a MIME information file for the application to the MIME type registry. For more information on MIME information files, see MIME Information Files.
Add a MIME keys file for the application to the MIME type registry. For more information on MIME keys files, see MIME Keys Files.
If the application uses a new MIME type, add an icon for the MIME type to /usr/gnome/share/icons/theme_name/icon_size/mimetypes. For more information on icons and themes, see Installing Themes.
To associate the application with a MIME type, add an application registration file to the application registry. For more information on the application registry, see Registering Applications for MIME Types.