File README.SuSE of Package fbreader
FBReader package contains the following subpackages: - fbreader: The ebook reader - zlibrary: Cross-platform GUI library - zlibrary-ui-gtk: GTK+ interface for zlibrary - zlibrary-ui-qt: Qt interface for zlibrary 'zypper install fbreader' does not guarantee which interface gets picked; so specify also either zlibrary-ui-gtk or -qt. If both -gtk and -qt interfaces are installed, by default the Gtk+ interface is used. To change the interface you want to use, run as root: # update-alternatives --config zlibrary-ui to reset the choice to the default, use # update-alternatives --auto zlibrary-ui