title: Different colour of fill and stroke in Google area chart
body: <p>Please, look at the image below.</p>
  
  <p><a href="https://i.stack.imgur.com/ZUrmt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZUrmt.png" alt="enter image description here"></a></p>
  
  <p>What I need is to have yellow colour instead of grey but it seems that in Google area charts the fill colour is always the same as the colour of the stroke, you can only specify areaOpacity which is 0.5 in this particular case. </p>
  
  <p>See this image now:</p>
  
  <p><a href="https://i.stack.imgur.com/OzwSO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/OzwSO.png" alt="enter image description here"></a></p>
  
  <p>I can change manually the fill colour of the <code>&lt;path&gt;</code> element but it does not seem to be exposed in chart API. At least, I went through Q&amp;A sites and documentation and didn't find it; hope I didn't overlook it. Could someone tell if you had similar issue and whether workaround exists?</p>