title: JavaFX how to apply CSS theme
body: <p>I've found this JavaFX theme: <a href="http://www.guigarage.com/javafx-themes/flatter/" rel="nofollow">http://www.guigarage.com/javafx-themes/flatter/</a></p>
  
  <p>I've been trying for 2 hours now to implement it. But i really don't know how.</p>
  
  <p>Can anyone tell me step-by-step how to activate this theme?
  I am using Netbeans (JavaFX application) together with JavaFX Scene Builder 2.0</p>