+.B \-skip\-color \fIcolor\fP
+The maze solver will choose to not go down a path if it can "see" (in a
+straight line) that it is a dead end. This is the color to use for paths
+that are skipped for this reason.
+.TP 8
+.B \-surround\-color \fIcolor\fP
+If the maze solver ever completely encloses an area within the maze, then
+it knows that the exit is not in there (and in fact the interior of that
+area might not even be reachable.) It will mark out those cells using this
+color.
+.TP 8