title: JPanel and TitledBorder UI properties with Nimbus
body: <p>I would like to change the default Nimbus TitledBorder L&amp;F, to a simple blue rounded titled border.  The title should also be blue.
  I could make it, but the problem is that i would like to apply it to specific panel and not all panels in my GUI, so <code>UIManager.put("TitledBorder.titleColor", Color.blue)</code> is not applicable.
  I could do it other way than with the L&amp;F properties, but using L&amp;F properties is less change in code if i have to change something.
  How can i set to only the wanted panel using L&amp;F properties ?
  Thank you for help.</p>