It may contain the following character sequences:
.Bl -column "Character sequence" "Replaced with" -offset indent
.It Sy "Character sequence" Ta Sy "Replaced with"
+.It Li "+<" Ta "Pad with a space"
.It Li "+A" Ta "Output of the external script"
.It Li "+C" Ta "Window class"
.It Li "+D" Ta "Workspace name"
.It Li "+F" Ta "Floating indicator"
.It Li "+I" Ta "Workspace index"
.It Li "+N" Ta "Screen number"
+.It Li "+P" Ta "Window class and title separated by a colon"
.It Li "+S" Ta "Stacking algorithm"
.It Li "+T" Ta "Window title"
.It Li "+U" Ta "Urgency hint"
maintaining default floating window behavior.
Possible stack_mode values are
.Pa vertical ,
-.Pa horizontal
+.Pa vertical_flip ,
+.Pa horizontal ,
+.Pa horizontal_flip
and
.Pa fullscreen .
.Pp
Note that many terminal emulators require this to be enabled for it to
propagate.
In xterm, for example, one needs to add the following line
-.Pa xterm.urgentOnBell: true
+.Pa xterm.bellIsUrgent: true
to
.Pa .Xdefaults .
.It Ic verbose_layout