&lsquo;\m[]&rsquo; and
&lsquo;\M[]&rsquo; switch back to the previous color.
&lsquo;\m&rsquo; and &lsquo;\M&rsquo; correspond to the new
troff output command sets starting with &lsquo;m&rsquo; and
&lsquo;DF&rsquo;. The device-specific default color is
called &lsquo;default&rsquo; and can&rsquo;t be
redefined.</font></p>

<p style="margin-top: 1em"><font color="#000000">Use the
&lsquo;color&rsquo; request to toggle the usage of colors
(default is on); the read-only register &lsquo;.color&rsquo;
is&nbsp;0 if 