<code>+Hn</code> settings.</dd>

<dt><code>-help</code></dt>
<dd>Display the X Window System-specific options. Use<code>-H</code> by itself on the command-line to output the general POV-Ray options.</dd>

<dt><code>-icon</code></dt>
<dd>Start the preview window as an icon.</dd>

<dt><code>-title &lt;window_title&gt;</code></dt>
<dd>Override the default preview window title with <strong><code>window_title</code></strong>.</dd>

<dt><code>-visual &lt;visual_type&gt;</code></dt>
<dd>Use  the  deepest  visual o