message: Line chart series colors were not being respected
diff: @@ -2646,9 +2646,9 @@ var PptxGenJS = function(){
  strXml += '<a:ln><a:noFill/></a:ln>';
  }
  else {
  - strXml += '<a:solidFill>';
  + strXml += '<a:ln><a:solidFill>';
  strXml += ' <a:srgbClr val="'+ arrColors[index % arrColors.length] +'"/>';
  - strXml += '</a:solidFill>';
  + strXml += '</a:solidFill></a:ln>';
  }
  strXml += createShadowElement(opts.shadow, DEF_SHAPE_SHADOW);
  strXml += ' </c:spPr>';
  