<summary>
Specifies the Y offset from the vertical origin of the current glyph to the vertical origin of the next glyph when writing vertically.
(Note that the term "origin" by itself denotes the horizontal origin. The vertical origin is different.
Its Y coordinate is specified by verticalOriginY value,
and its X coordinate is half the advanceWidth to the right of the horizontal origin).
</summary>
<summary> Specifies the Y offset from the vertical origin of the current glyph to the vertical origin of the next glyph when writing vertically. (Note that the term "origin" by itself denotes the horizontal origin. The vertical origin is different. Its Y coordinate is specified by verticalOriginY value, and its X coordinate is half the advanceWidth to the right of the horizontal origin). </summary>