docs: function initArea(proceed, chart, options) {
  		proceed.call(this, chart, options);
  		if (this.chart.polar) {
  		
  			/**
  			 * Overridden method to close a segment path. While in a cartesian plane the area 
  			 * goes down to the threshold, in the polar chart it goes to the center.
  			 */
  			this.closeSegment = function (path) {
  				var center = this.xAxis.center;
  				path.push(
  					'L',
  					center[0],
  					center[1]
  				);			
  			};
  		
  			// Instead of complicated logic to draw an area around the inner area in a stack,
  			// just draw it behind
  			this.closedStacks = true;
  		}
  	}