docs: function () {
  			var series = this,
  				points = series.points,
  				seriesOptions = series.options,
  				attr,
  				hover,
  				level;
  			each(points, function (point) {
  				if (point.node.isVisible) {
  					level = series.levelMap[point.level];
  					attr = {
  						stroke: seriesOptions.borderColor,
  						'stroke-width': seriesOptions.borderWidth,
  						dashstyle: seriesOptions.borderDashStyle,
  						r: 0, // borderRadius gives wrong size relations and should always be disabled
  						fill: pick(point.color, series.color)
  					};
  					// Overwrite standard series options with level options			
  					if (level) {
  						attr.stroke = level.borderColor || attr.stroke;
  						attr['stroke-width'] = level.borderWidth || attr['stroke-width'];
  						attr.dashstyle = level.borderDashStyle || attr.dashstyle;
  					}
  					// Merge with point attributes
  					attr.stroke = point.borderColor || attr.stroke;
  					attr['stroke-width'] = point.borderWidth || attr['stroke-width'];
  					attr.dashstyle = point.borderDashStyle || attr.dashstyle;
  					attr.zIndex = (1000 - (point.level * 2));
  
  					// Make a copy to prevent overwriting individual props
  					point.pointAttr = merge(point.pointAttr);
  					hover = point.pointAttr.hover;
  					hover.zIndex = 1001;
  					hover.fill = Color(attr.fill).brighten(seriesOptions.states.hover.brightness).get();
  					// If not a leaf, then remove fill
  					if (!point.isLeaf) {
  						if (pick(seriesOptions.interactByLeaf, !seriesOptions.allowDrillToNode)) {
  							attr.fill = 'none';
  							delete hover.fill;
  						} else {
  							// TODO: let users set the opacity
  							attr.fill = Color(attr.fill).setOpacity(0.15).get();
  							hover.fill = Color(hover.fill).setOpacity(0.75).get();
  						}
  					}
  					if (point.node.level <= series.nodeMap[series.rootNode].level) {
  						attr.fill = 'none';
  						attr.zIndex = 0;
  						delete hover.fill;
  					}
  					point.pointAttr[''] = H.extend(point.pointAttr[''], attr);
  					if (point.dataLabel) {
  						point.dataLabel.attr({ zIndex: (point.pointAttr[''].zIndex + 1) });
  					}
  				}
  			});
  			// Call standard drawPoints
  			seriesTypes.column.prototype.drawPoints.call(this);
  
  			each(points, function (point) {
  				if (point.graphic) {
  					point.graphic.attr(point.pointAttr['']);
  				}
  			});
  
  			// Set click events on points 
  			if (seriesOptions.allowDrillToNode) {
  				series.drillTo();
  			}
  		}