.html">pal</a></code>.</p></dd>


<dt>col_border</dt>
<dd><p>Color of borders.
Default: <code>col_border = grey(.33, alpha = .99)</code>.</p></dd>


<dt>lwd</dt>
<dd><p>Width of arrows.</p></dd>


<dt>box_lwd</dt>
<dd><p>Width of boxes.</p></dd>


<dt>col_shadow</dt>
<dd><p>Color of box shadows.
Default: <code>col_shadow = grey(.11, alpha = .99)</code>.</p></dd>


<dt>cex_shadow</dt>
<dd><p>Scaling factor of shadows (values &gt; 0 showing shadows).
Default: <code>cex_shadow = 0</code>.</p></dd>

</dl></div>