title: How to change the color of titlebar in JFrame?
body: <p>I am using the following code,</p>
  
  <pre><code>UIManager.put("JFrame.activeTitleBackground", Color.red);
  </code></pre>
  
  <p>for change the toolbar color in JFrame. But it didn't work.</p>
  
  <p>Is it possible to  change the color of titlebar in JFrame?</p>