static void appendColoredText(JTextPane pane, Color color, S text) ctex {
  Document doc = pane.getStyledDocument();
  SimpleAttributeSet set = new SimpleAttributeSet();
  StyleConstants.setFontFamily(set, "Courier");
  StyleConstants.setBold(set, true);
  StyleConstants.setFontSize(set, 14);
  StyleConstants.setBackground(set, color);
  doc.insertString(doc.getLength(), text, set);
}