rpm -ql redhat-switchmail should include /usr/share/redhat-switchmail/pixmaps /usr/share/redhat-switchmail/pixmaps/switchmail.png /usr/share/redhat-switchmail/pixmaps/switchmail-mini.xpm
no, redhat-switchmail includes only TUI version. If you want GUI version you have to install redhat-switchmail-gnome which includes pixmaps.