+.B \-visual \fIvisual\fP
+Specify which visual to use. Legal values are:
+.RS 8
+.TP 8
+.B best
+Use the visual which supports the most writable color cells; this is
+the default.
+.TP 8
+.B default
+Use the screen's default visual (the visual of the root window.) This is
+not necessarily the most colorful visual, which is why it is not the default.
+.TP 8
+.I class
+One of \fBStaticGray\fP, \fBStaticColor\fP, \fBTrueColor\fP, \fBGrayScale\fP,
+\fBPseudoColor\fP, or \fBDirectColor\fP. Selects the deepest visual of
+the given class.
+.TP 8
+.I number
+A number (decimal or hex) is interpreted as a visual id number, as reported
+by the
+.BR xdpyinfo (1)
+program; in this way you can select a shallower visual if desired.
+.RE
+.TP 8