oef">coef<a class="anchor" aria-label="anchor" href="#arg-coef"></a></dt>
<dd><p>An addition coefficient applied to the resulting object. This is
useful to adjust the brightness of the final image. Defaults to 0.</p></dd>


<dt id="arg-viewer">viewer<a class="anchor" aria-label="anchor" href="#arg-viewer"></a></dt>
<dd><p>The viewer option. If not provided, the value is retrieved
using <code><a href="get_pliman_viewer.html">get_pliman_viewer()</a></code>. This option controls the type of viewer to use
for i