¿Alternativas a swing para escritorio?

[LuisChavezB]

para cambiar el puro skin:

Código:

        JFrame.setDefaultLookAndFeelDecorated(true);
        JDialog.setDefaultLookAndFeelDecorated(true);
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                try {
                    SubstanceLookAndFeel.setSkin(skin);
                } catch (Exception ex) {
                }
            }
        });

para cambiar tambien el look and feel:

Código:

        JFrame.setDefaultLookAndFeelDecorated(true);
        JDialog.setDefaultLookAndFeelDecorated(true);
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(lookAndFeel);
                    SubstanceLookAndFeel.setSkin(skin);
                } catch (Exception ex) {
                }
            }
        });