title: Gradient Fill on Line Chart (Highcharts)
body: <p>I've been unable to find documentation that would let me combine the look of these two charts:</p>
  
  <p><a href="http://www.highcharts.com/demo/spline-irregular-time/gray">Irregular Time Chart</a><br /><a href="http://www.highcharts.com/demo/line-time-series/gray">Line/Time Chart with Gradient Fill</a></p>
  
  <p>I'm attempting to put a gradient fill under each of 3 lines in an irregular time chart.</p>
  
  <p>Here's as far as I got: <a href="http://jsfiddle.net/WNDUH/">http://jsfiddle.net/WNDUH/</a></p>
  
  <p>Any help would be appreciated!</p>