public ButtonsRenderer(RemoveButtonComboBox<E> comboBox) { super(new BorderLayout(0, 0)); this.comboBox = comboBox; label.setOpaque(false); setOpaque(true); add(label); deleteButton.setBorder(BorderFactory.createEmptyBorder()); deleteButton.setFocusable(false); deleteButton.setRolloverEnabled(false); deleteButton.setContentAreaFilled(false); add(deleteButton, BorderLayout.EAST); }