title: Opacity in HERE Map Image API
body: <p>I am trying to change the opacity of the polygon fill when using the Region  Resource from the HERE Map Image API.</p>
  
  <p>Has anyone been able to get this right? </p>
  
  <p>The resource <a href="https://developer.here.com/documentation/map-image/topics/resource-region.html" rel="nofollow noreferrer">documentation</a> does not mention opacity anywhere. The only options available to alter the fill is <code>fc,fc0,fc1,...</code> which specifies the fill color itself.</p>