Storage for element color values.
Inheritance: PaletteElementColor
        /// <summary>
        /// Initialize a new instance of the PaletteTrackBarRedirect class.
        /// </summary>
        /// <param name="redirect">Inheritence redirection instance.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        public PaletteTrackBarRedirect(PaletteRedirect redirect,
                                       NeedPaintHandler needPaint)
        {
            Debug.Assert(redirect != null);

            // Store the provided paint notification delegate
            NeedPaint = needPaint;

            // Create storage that maps onto the inherit instances
            _backRedirect = new PaletteDoubleRedirect(redirect, PaletteBackStyle.PanelClient, PaletteBorderStyle.ControlClient, NeedPaint);
            Tick          = new PaletteElementColorRedirect(redirect, PaletteElement.TrackBarTick, NeedPaint);
            Track         = new PaletteElementColorRedirect(redirect, PaletteElement.TrackBarTrack, NeedPaint);
            Position      = new PaletteElementColorRedirect(redirect, PaletteElement.TrackBarPosition, NeedPaint);
        }
        /// <summary>
        /// Initialize a new instance of the PaletteTrackBarRedirect class.
        /// </summary>
        /// <param name="redirect">Inheritence redirection instance.</param>
        /// <param name="needPaint">Delegate for notifying paint requests.</param>
        public PaletteTrackBarRedirect(PaletteRedirect redirect,
                                       NeedPaintHandler needPaint)
        {
            Debug.Assert(redirect != null);

            // Store the provided paint notification delegate
            NeedPaint = needPaint;

            // Create storage that maps onto the inherit instances
            _backRedirect = new PaletteDoubleRedirect(redirect, PaletteBackStyle.PanelClient, PaletteBorderStyle.ControlClient, NeedPaint);
            _tickRedirect = new PaletteElementColorRedirect(redirect, PaletteElement.TrackBarTick, NeedPaint);
            _trackRedirect = new PaletteElementColorRedirect(redirect, PaletteElement.TrackBarTrack, NeedPaint);
            _positionRedirect = new PaletteElementColorRedirect(redirect, PaletteElement.TrackBarPosition, NeedPaint);
        }