</var>,<var>bgcolor</var></code></dt>
<dd><p>Use this color combination for the concise function descriptions
in the two help lines at the bottom of the screen.
See <a href="#set-keycolor"><code>set keycolor</code></a> for valid color names.
</p>
</dd>
<dt><code>set guidestripe <var>number</var></code></dt>
<dd><p>Draw a vertical stripe at the given column, to help judge the width of the
text.  (The color of the stripe can be changed with <code>set stripecolor</code>.)
</p>
</dd>
<dt><code>set historylog</c