penColor = null</td></tr></table></blockquote>color of the open price tick mark. </div></div><div class=CToolTip id="tt349"><div class=CSection>This document will help you understand how jqPlot&rsquo;s options relate to the API documentation and the jqPlot object itself. </div></div><div class=CToolTip id="tt350"><div class=CGeneric>See Options Tutorial</div></div><!--END_ND_TOOLTIPS-->


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<div class=CToolTip id="tt351"><div class=CProperty><blockquote><table border=0 cellspacing