code: private ColorItem buildColorItem(Message menuItem) {
          final int colorId = (int) ((NumberField) menuItem.arguments.get(1)).getValue();
          final String label = ((StringField) menuItem.arguments.get(3)).getValue();
          return buildColorItem(colorId, label);
      }
docs: Creates a color item that represents a color field found for a track based on a dbserver message.
  
  @param menuItem the rendered menu item containing the color metadata field
  
  @return the color metadata field