// Container für Vordergrund
        JPanel foreground = new JPanel();
        // Layout des Containers
        GridBagLayout gbl1 = new GridBagLayout();
        foreground.setLayout(gbl1);
        // Border des Containers: Titled Border, etched Style
        Border loweredetched = BorderFactory.createEtchedBorder(EtchedBorder.LOWERED);
        TitledBorder titledborder = BorderFactory.createTitledBorder(loweredetched, "Vordergrund");
        foreground.setBorder(titledborder);
        // Container zum Frame hinzufügen
        addComponent(f.getContentPane(), gbl, foreground, 0, 0, 3, 1, 1, 1);