title: Swing and GTK font
body: <p>I have write a little GUI with java Swing. But i have some little problems with the default look and feel using <code>com.sun.java.swing.plaf.gtk.GTKLookAndFeel</code></p>
  
  <p><img src="https://i.stack.imgur.com/4Fbee.png" alt="enter image description here"></p>
  
  <p>As you can see the menus and the buttons doesn't have the same font of the other application in my Desktop (In the picture Eclipse and Nautilus), I'm using GTK on Gnome2.</p>
  
  <p>Meanwhile using the relative look and feel on windows there are not differences:</p>
  
  <p><img src="https://i.stack.imgur.com/V85FO.png" alt="enter image description here"></p>
  
  <p>The font look identical.</p>
  
  <p>How is it possible this? Which parameters can I modify to edit the font look on GTK?</p>