How to set progress bar forecolor to its original forecolor?

I set the progressbar forecolor to red but i dont know how to bring it back to its original(JFrame.setDefaultLookAndFeelDecorated(true)) color. i tried to use null but the forecolor turns to black.
pb.setForeground(Color.red);

Try using the getForeground() method before you change the color to see what color it is.

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