and the &ldquo;useNegativeColors&rdquo; option is true.</div></div><div class=CToolTip id="tt330"><div class=CProperty><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>this.negativeSeriesColors = $.jqplot.config.defaultNegativeColors</td></tr></table></blockquote>colors to use for portions of the line below zero.</div></div><div class=CToolTip id="tt331"><div class=CProperty><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>this.neighborThreshold 