private void updateLabelSample() {
    myColorSample.clear();
    SimpleTextAttributes attributes = new SimpleTextAttributes(SimpleTextAttributes.STYLE_BOLD, myColor);
    String text = myLabelField.getText().trim();
    myColorSample.append(text, attributes);
    myErrorPanel.removeAll();
    if (myExistingMarkups.contains(text)) {
      myErrorPanel.add(new JLabel(XDebuggerBundle.message("xdebugger.mark.dialog.duplicate.warning"), UIUtil.getBalloonWarningIcon(),
                                  SwingConstants.LEFT));
    }
  }
private void updateLabelSample()