仔细阅读readme，就可以发现，tinycp.jar含有调试定制面板，实际上就是定制Theme主题，开发加载的时候，还是应该加载tinylaf.jar

TinyLaF will search the following URLs: 

1. TinyLookAndFeel.class.getResource("/Default.theme");
   - finds 'Default.theme' if it is inside tinylaf.jar
   
2. Thread.currentThread().getContextClassLoader().getResource("Default.theme");
   - finds 'Default.theme' if it is inside your application's JAR
   
3. new File(System.getProperty("user.home"), "Default.theme").toURI().toURL();
   - finds 'Default.theme' if it is inside the home directory
   
4. new File(System.getProperty("user.dir"), "Default.theme").toURI().toURL();
   - finds 'Default.theme' if it is inside the working directory

根据上面的提示，只需要生成一个Default.theme,放置在src目录下即可

然后调用UIManager.setLookAndFeel("de.muntjak.tinylookandfeel.TinyLookAndFeel");

不错，收藏起来~~~