title: Background color of the selected item in an uneditable JComboBox
body: <p>The background color of the selected item in an uneditable JComboBox is a sort of blue:</p>
  
  <p><img src="https://i.stack.imgur.com/bNDlP.jpg" alt="alt text"></p>
  
  <p>Is there any way to make this a different color, such as white, for example?</p>