title: How to fill between two AreaCharts in JavaFX?
body: <p>The Area Chart in JavaFX fills the area between the data line and the zero y-axis. </p>
  
  <p>I would only like to know how to fill between two Area Charts.</p>
  
  <p>More Details:</p>
  
  <p>I am generating a bunch of random walks. Then, I create three different XYCharts for the Paths, the mean, and the mean +/- std. deviation. Finally, I use a StackPane to place each chart on top of each other with transparent background. </p>
  
  <p>The order of the charts has to be the following:
  1. Simulated paths chart on the very back (LineChart).
  2. Std. Deviation chart (AreaChart).
  3. The mean chart on top (LineChart).</p>
  
  <p>Pictures - highlighting the problem.</p>
  
  <p><a href="https://i.stack.imgur.com/IhSJO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IhSJO.png" alt="enter image description here"></a>
  <a href="https://i.stack.imgur.com/nPuSr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nPuSr.png" alt="enter image description here"></a></p>
  
  <p>How can I accomplish this? CSS is preferred. </p>