title: adding text to a kml icon
body: <p>I have a document with many placemarks. Each placemark is a bicycle station, and I have to show how many bikes are in the station. Is there a way to add text to the placemark icon?
  (I'm aware I can put this data in the balloon, but I really need to add this to the Icon)</p>
  
  <p>Thanks,
  Ami</p>