CSS-like styling to a Java application that uses Swing

[pwgit-create]

It is possible to apply global CSS-like styling to a Java application that uses Swing, but not directly
through standard CSS files as you would with web technologies. Instead, Swing provides its own mechanisms for
customizing the look and feel of components.

Here are some approaches you can use:

1. Look and Feel: You can set a different Look and Feel (L&F) to change the overall appearance of your
   application. Java provides several built-in L&Fs such as Metal, Nimbus, Motif, etc.

   try {
       UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");
   } catch (Exception e) {
       e.printStackTrace();
   }

2. UIManager Defaults: You can use UIManager to set default properties for various components.

   UIManager.put("Button.background", Color.BLUE);
   UIManager.put("Button.foreground", Color.WHITE);

3. Custom ComponentUI: For more advanced customization, you can create your own ComponentUI subclasses and
   override painting and layout methods.

4. Third-party Libraries:

   • FlatLaf: A modern Look and Feel for Java Swing that supports custom themes.
   • JGoodies: Provides binding and layout tools to make it easier to manage component styles.

Here's an example using UIManager to set global properties:

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

public class GlobalCSSExample {
    public static void main(String[] args) {
        // Set the Nimbus look and feel
        try {
            UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");
        } catch (Exception e) {
            e.printStackTrace();
        }

        // Customize global properties
        UIManager.put("Button.background", Color.BLUE);
        UIManager.put("Button.foreground", Color.WHITE);

        // Create and display the frame
        SwingUtilities.invokeLater(() -> {
            JFrame frame = new JFrame("Global CSS Example");
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            JButton button = new JButton("Click Me");

            frame.getContentPane().add(button, BorderLayout.CENTER);
            frame.pack();
            frame.setVisible(true);
        });
    }
}

This approach allows you to apply a consistent style across your entire application. However, it's not as flexible
or powerful as CSS in web development, and often requires more manual configuration for complex customizations.

[lilstiffy]

Have a look at these look and feels (note to myself)

Substance
Sea Glass
Info Look And Feel
Pgs. Look And Feel
Quaqua Look And Feel
Oyaha
Liquid Look And Feel
JTattoo