title: Change color Marker Geochart
body: <p>I'm using <a href="https://developers.google.com/chart/interactive/docs/gallery/geochart" rel="nofollow noreferrer">Geochart</a> and I need to set different colors for the marker : </p>
  
  <ul>
  <li>Production Countries : red</li>
  <li>Raw Material Countries : blue</li>
  <li>...</li>
  </ul>
  
  <p>On the doc it's just noticed how to change the color of the axis using colorAxis.colors property, but I don't need axis on my project.</p>