All actions can now also be performed with the keyboard. The keyboard shortcuts are listed in docs/keys.txt, and they're also shown when running the application. In order to ensure consistency, the "h/j/u/n keys" are not used on the main screen. On the room links screen, a room that is being moved is now marked with red stripes. There are seven additional interface sound effects. The application now warns the user about unsaved changes. popup.wav has been changed (3.7MB to 6kB) in order to decrease the total size of the package.