Can't change JProgressBar color in Mac OS look and feel

Question

I know this question has been answered before, but it\'s just not working for me. I followed the instructions from here: How to change JProgressBar color?

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Answer 1

To override Look & Feel defaults, make the change before constructing the GUI on the event dispatch thread, as shown below.

On the com.apple.laf.AquaLookAndFeel, the progress bar's UI delegate is an instance of com.apple.laf.AquaProgressBarUI. As you have found, it ignores many defaults in favor of the native component. If a novel color scheme is required, consider supplying your own UI delegate, as shown here.

AquaProgressBarUI:

CustomProgressUI:

ProgressBar UI Defaults:

ProgressBar.background: com.apple.laf.AquaNativeResources$CColorPaintUIResource[r=238,g=238,b=238]
ProgressBar.border: javax.swing.plaf.BorderUIResource@47f08ed8
ProgressBar.cellLength: 1
ProgressBar.cellSpacing: 0
ProgressBar.cycleTime: 3000
ProgressBar.font: sun.swing.SwingLazyValue@6446d228
ProgressBar.foreground: javax.swing.plaf.ColorUIResource[r=0,g=0,b=0]
ProgressBar.horizontalSize: javax.swing.plaf.DimensionUIResource[width=146,height=12]
ProgressBar.repaintInterval: 20
ProgressBar.selectionBackground: javax.swing.plaf.ColorUIResource[r=255,g=255,b=255]
ProgressBar.selectionForeground: javax.swing.plaf.ColorUIResource[r=0,g=0,b=0]
ProgressBar.verticalSize: javax.swing.plaf.DimensionUIResource[width=12,height=146]
ProgressBarUI: com.apple.laf.AquaProgressBarUI

SSCCE:

import java.awt.*;
import javax.swing.*;

public class ProgressBarTest extends JFrame {

    public static void main(String args[]) {
        UIManager.put("ProgressBar.repaintInterval", 100);
        UIManager.put("ProgressBar.border",
            BorderFactory.createLineBorder(Color.blue, 2));
        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                JFrame f = new JFrame();
                f.setLayout(new GridLayout(0, 1, 5 , 5));
                f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                f.add(createBar());
                f.add(createBar());
                f.add(createBar());
                f.pack();
                f.setLocationRelativeTo(null);
                f.setVisible(true);
            }

            private JProgressBar createBar() {
                JProgressBar progressBar = new JProgressBar(0, 100);
                progressBar.setValue(50);
                return progressBar;
            }
        });
    }
}