@Override
	public void actionPerformed(ActionEvent e) {
		String buttonString = e.getActionCommand();

		  if (buttonString.equals("Blue")) {
			  this.textDisplay.setBackground(Color.BLUE);
			  this.textDisplay.setForeground(Color.WHITE);
		  } else if (buttonString.equals("Black")) {
			  this.textDisplay.setBackground(Color.BLACK);
			  this.textDisplay.setForeground(Color.GREEN);
		  }
	}