public void writeInformation(Description d, int categoryID, HUD UI) {
    if (categoryID >= 3) return ;
    else super.writeInformation(d, categoryID, UI) ;
    if (categoryID == 0) {
      final String
        uS = needMessage(upgradeLevel),
        tS = needMessage(upgradeLevel + 1) ;
      if (uS != null) {
        d.append("\n\n") ;
        d.append(uS) ;
      }
      else if (tS != null) {
        d.append("\n\n") ;
        d.append(tS) ;
      }
    }
  }