title: Filling area between two lines - Chart.js v2
body: <p>I am trying to fill the area between two lines in a line chart using <a href="http://www.chartjs.org/" rel="noreferrer">Chart.js</a>. Like this: <a href="https://i.stack.imgur.com/eAhA4.gif" rel="noreferrer"><img src="https://i.stack.imgur.com/eAhA4.gif" alt=""></a></p>
  
  <p>There is already an answer <a href="https://stackoverflow.com/questions/34161616/chart-js-line-graphs-fill-area-above-line-as-opposed-to-below-and-to-the-right">here</a>, that explains how to extend chartjs to do this.
  But I know this feature is now native in V2 (from <a href="https://github.com/chartjs/Chart.js/issues/1754#issuecomment-167355980" rel="noreferrer">this thread on the github issues page</a>), the problem is I just can't find documentation referring to this.</p>
  
  <p>Is there a section about this in the doc? Anyone know how to use this feature?</p>
  
  <p>Thanks!</p>