How to use predefined themes.
   

There are only two steps to select a predefined theme and set the look and feel you want: 
    com.jtattoo.plaf.acryl.AcrylLookAndFeel.setTheme("Green", "INSERT YOUR LICENSE KEY HERE", "my company");
    UIManager.setLookAndFeel("com.jtattoo.plaf.acryl.AcrylLookAndFeel");

All look and feel's within the JTattoo package do have a static method named setTheme. The first parameter is the name of the theme you want to select. The second parameter is the license key (you will get one if you purchase a license) and the last parameter is the string you want to show in the lower left corner of popup-menus. If you don't have a license key, this will work as well, with the restriction that you can't set the string in popup-menus.

For a complete list of the predefined themes see : Predefined themes

Here's a simple demo application to illustrate the setTheme method: 

/*
 * Copyright 2006 MH-Software-Entwicklung. All rights reserved.
 * Use is subject to license terms.
 */

package com.jtattoo.demo.app;

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

public class SimpleThemesDemo extends JFrame {
    
    public SimpleThemesDemo() {
        super("SimpleThemesDemo-Application");
        
        // setup menu
        JMenuBar menuBar = new JMenuBar();
        JMenu menu = new JMenu("File");
        menu.setMnemonic('F');
        JMenuItem menuItem = new JMenuItem("New");
        menu.add(menuItem);
        menuItem = new JMenuItem("Open");
        menu.add(menuItem);
        menuItem = new JMenuItem("Save");
        menu.add(menuItem);
        menuItem = new JMenuItem("Save as");
        menu.add(menuItem);
        menu.addSeparator();
        menuItem = new JMenuItem("Exit");
        menuItem.setMnemonic('x');
        menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F4, KeyEvent.ALT_MASK));
        menuItem.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent event) {
                System.exit(0);
            }
        });
        menu.add(menuItem);
        menuBar.add(menu);
        setJMenuBar(menuBar);
        
        // setup the widgets
        JPanel contentPanel = new JPanel(new BorderLayout());
        contentPanel.setBorder(BorderFactory.createEmptyBorder(0, 4, 4, 4));
        JTree tree = new JTree();
        tree.expandRow(3);
        tree.expandRow(2);
        tree.expandRow(1);
        JScrollPane westPanel = new JScrollPane(tree);
        JEditorPane editor = new JEditorPane("text/plain", "Hello World");
        JScrollPane eastPanel = new JScrollPane(editor);
        JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, true, westPanel,eastPanel);
        splitPane.setDividerLocation(148);
        contentPanel.add(splitPane, BorderLayout.CENTER);
        setContentPane(contentPanel);
        
        // add the listeners
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        
        // show the application
        setLocation(32, 32);
        setSize(400, 300);
        setVisible(true);
    } // end CTor SimpleThemesDemo
    
    public static void main(String[] args) {
        try {
            
            // setTheme(String themeName, String licenseKey, String logoString)
            com.jtattoo.plaf.acryl.AcrylLookAndFeel.setTheme("Green", "INSERT YOUR LICENSE KEY HERE", "my company");
            
            // select the Look and Feel
            UIManager.setLookAndFeel("com.jtattoo.plaf.acryl.AcrylLookAndFeel");
            
            // start the demo application
            new SimpleThemesDemo();
            
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    } // end main
    
} // end class SimpleThemesDemo