+Default programs:
+.Bl -tag -width "screenshot_wind" -offset indent -compact
+.It Cm lock
+xlock
+.It Cm menu
+dmenu_run $dmenu_bottom \-fn $bar_font \-nb $bar_color \-nf $bar_font_color \-sb
+$bar_border \-sf $bar_color
+.It Cm term
+xterm
+.It Cm initscr
+initscreen.sh # optional
+.It Cm screenshot_all
+screenshot.sh full # optional
+.It Cm screenshot_wind
+screenshot.sh window # optional
+.El
+.Pp
+Note that optional default programs will not be validated unless overridden.
+If a default program fails validation, you can resolve the exception
+by installing the program, modifying the program call or disabling the program
+by freeing the respective key binding.
+.Pp
+For example, to override
+.Ic lock :