 a string, surrounded by double-quotes,
containing what you want in the header.  HEADER_RECTO disables
mom&#8217;s normal 3-part headers, therefore anything you want in
the headers must be entered by hand in the string, including colours
(via the
<a href="definitions.html#inlines">inline escape</a>
<a href="color.html#color-inline"><kbd><nobr>\*[&lt;colorname&gt;]</nobr></kbd></a>).
</p>

<p>
By default, HEADER_RECTO is set at the same size, and in the same
family and font, as paragraph text.  The control m