title: *Highcharts* Get rid of the color in the percentage area chart
body: <p>I have a percentage area chart like this: <a href="http://www.highcharts.com/demo/area-stacked-percent" rel="nofollow">http://www.highcharts.com/demo/area-stacked-percent</a> and want to ask that are there any ways to get rid of the area's color ? so that we have only the lines and the white background ?</p>