title: Google Maps: Transparent Polygons
body: <p>I have a map that will contain a group of colored polygons. There are times I want to change the fill color of each poly from whatever it is to transparent. I have the following code:</p>
  
  <pre><code>polys[x].setOptions({
      fillColor: "#FFFFFF",
      fillOpacity: .01,  //This changes throughout the program      
      strokeColor: '#000000',
  });
  </code></pre>
  
  <p><strong>How can I set the fillColor to transparent? Is there a specific hex value?</strong></p>