如何闪烁任何JComponent的背景颜色？

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class BlinkingComponent extends JComponent implements ActionListener {
    private Color color1;
    private Color color2;
    private Color currentColor;
    private Timer timer;

    public BlinkingComponent() {
        color1 = Color.RED;
        color2 = Color.YELLOW;
        currentColor = color1;

        timer = new Timer(500, this);
        timer.start();
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        g.setColor(currentColor);
        g.fillRect(0, 0, getWidth(), getHeight());
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (currentColor == color1) {
            currentColor = color2;
        } else {
            currentColor = color1;
        }
        repaint();
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Blinking Component");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(200, 200);

        BlinkingComponent blinkingComponent = new BlinkingComponent();
        frame.add(blinkingComponent);

        frame.setVisible(true);
    }
}