Its not allowed to use the file extension when not using a full path. Just use
the image name here.
Name=Reboot
Comment=Reboot the BUG.
Exec=/sbin/reboot
-Icon=system-restart.png
+Icon=system-restart
Terminal=false
Categories=Utility;
StartupNotify=false
Name=Shutdown
Comment=Shutdown the BUG.
Exec=/sbin/shutdown 0 -h
-Icon=system-shutdown.png
+Icon=system-shutdown
Terminal=false
Categories=Utility;
StartupNotify=false
Name=Suspend
Comment=Suspend the BUG.
Exec=/usr/bin/apm -s
-Icon=system-suspend.png
+Icon=system-suspend
Terminal=false
Categories=Utility;
StartupNotify=false
Name=Xeyes
Comment=The ultimate desktop application.
Exec=/usr/bin/xeyes
-Icon=gtk-media-stop.png
+Icon=gtk-media-stop
Terminal=false
Categories=Utility;
StartupNotify=false