icon example

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.*;

public class ChessFoo {
    public static void main(String[] args) {
        String bishopPath = "https://upload.wikimedia.org/wikipedia/commons/9/9b/Chess_blt60.png";
        try {
            URL bishopUrl = new URL(bishopPath);
            BufferedImage bishopImg = ImageIO.read(bishopUrl);
            Icon bishopIcon = new ImageIcon(bishopImg);
            JOptionPane.showMessageDialog(null, bishopIcon, "Plain Icon", JOptionPane.PLAIN_MESSAGE);
            JPanel panel = new JPanel(new GridBagLayout());
            panel.setBackground(Color.BLACK);
            panel.setPreferredSize(new Dimension(80, 80));
            panel.add(new JLabel(bishopIcon));

            JPanel wrapperPanel = new JPanel();
            wrapperPanel.add(panel);
            JOptionPane.showMessageDialog(null, wrapperPanel, "Black Background", JOptionPane.PLAIN_MESSAGE);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}