Java SE (Java Platform, Standard Edition)

whenever i use the following:

try {
	UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
	System.out.println(e.toString());
}

and when i do this:

tabbedPane.setBackgroundAt(1, Color.RED);

the background colour of the tab does not change. it would change if i do not use "UIManager.setLookAndFeel", but the whole app would look like crap.

is there a way to change the colour of the tab without taking away "UIManager.setLookAndFeel()"?