The IncreaseCalendarGlyph property allows you to define bitmap glyph to represent
the increase calendar cell in the navigation section of the calendar header.
A bitmap defined in this property will override the IncreaseCalendarCaption property.
The bitmap will be centered in the increase calendar cell. If the bitmap
height exceeds the FixedRowHeight property, the bitmap will be drawn from
the top of the increase calendar cell. Similarly, if the bitmap width
exceeds the DayCellWidth property, the bitmap will be drawn from the left
of the increase calendar cell.
NOTE: The ShowMonthButtons property must be enabled to see the increase calendar glyph or caption.
