private static void set_lookandfeel() {
        for (UIManager.LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) {
            if (Config.getLandf().equals(laf.getName())) {
                try {
                    UIManager.setLookAndFeel(laf.getClassName());
                } catch (ClassNotFoundException ex) {
                    Logger.getLogger(Desktop.class.getName()).log(Level.SEVERE, null, ex);
                } catch (InstantiationException ex) {
                    Logger.getLogger(Desktop.class.getName()).log(Level.SEVERE, null, ex);
                } catch (IllegalAccessException ex) {
                    Logger.getLogger(Desktop.class.getName()).log(Level.SEVERE, null, ex);
                } catch (UnsupportedLookAndFeelException ex) {
                    Logger.getLogger(Desktop.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }