title: Remove JButton padding in MigLayout
body: <p>I have a small "popup" like this:</p>
  
  <p><img src="https://indrek.eu/store/button_padding.PNG" alt="Tiny button"></p>
  
  <p>But I don't want the padding around the button, I want it to be as small as it can be with the supplied text.</p>
  
  <pre><code>btn.setMargin(new Insets(1, 1, 1, 1));
  panel.add(lbl, "wrap");
  panel.add(btn);
  frame.pack();
  frame.setVisible(true);
  </code></pre>
  
  <p>At least this doesn't work...
  Can this be achieved on MigLayout or should I use some other layout manager for this frame.</p>