(Sorry for the inconvenience)
evilwm is an extremely light window manager. It does not support window decorations or icons and uses keyboard shortcuts to access xterms in order to run applications from the command line.
Figure 6.6a shows a screenshot of evilwm running on PC-BSD 9.1.
Figure 6.6a: evilwm Running on PC-BSD
Notice that there aren't any icons, a system tray, or an application panel. An xterm has been opened via Ctrl+Alt+Enter and shows a simple ps command output.
The keyboard shortcuts for manipulating windows are listed here.
To exit evilwm and return to the login screen, type killall evilwm within an xterm.