huey: Internal maintenance specification

# - - -   M e n u B a r . _ _ h e l p S l i d e r s

    def __helpSliders ( self ):
        """Help for the color sliders.
        """
        self.__dialog ( 'Help: The color sliders',
            "To adjust a color, drag any of the three sliders with the "
            "mouse.  Each one controls one parameter of the color; see "
            "Help -> Creating new colors -> Color models and color "
            "space for an explanation of these parameters."
            "\n\tYou can also click on the '+' or '-' buttons to make "
            "fine adjustments." )