title: Remove gap to Parent Containers Border in Miglayout
body: <p>first a picture for visualizing the problem 
  <img src="https://i.stack.imgur.com/cIkf4.png" alt="Gap Removal Problem"></p>
  
  <p>As you can see, there is a huge gap to the parents container on the right and left side of the panel with the arrows, which should not be there. I do not have a clue how to remove the gap. I'm struggling with this for hours, I tried almost everything in the documentation and read all relevant topics on SO and MiG Support Forum. Here is the relevant code:</p>
  
  <pre><code>public class ArrowPanel extends JPanel
  {
  
   public ArrowPanel()
   {
       setLayout( new MigLayout( "fill,debug" ) );
  
       add( new JLabel( Icons.roundArrowRight() ), "grow,wrap" );
       add( new JLabel( Icons.roundArrowLeft() ), "grow" );
   }
  }
  </code></pre>
  
  <p>I think this should be easy, but somehow I do not get it...</p>