="../../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../../com/scottlogic/sparkline/sparklineClasses/ColumnSparklineBase.html#style:zeroStroke" class="signatureLink">zeroStroke</a></div></td><td class="summaryTableDescription"><span class="label">Type: </span>mx.graphics.IStroke&nbsp;<span class="label">CSS Inheritance: </span>no<br/>Sets the stroke for the line used to indi