ConstReadonlyBottom: "bottom"Aligned to the bottom.
ReadonlyCenter: "center"Aligned to the center.
ReadonlyDistributed: "distributed"Just like Justify, expect that all lines with a single word are centered and the last line is also distributed.
ReadonlyJustify: "justify"The vertical alignment of lines of text is distributed vertically, where each line of text inside the cell is evenly distributed across the height of the cell, with flush top and bottom margins.
ReadonlyTop: "top"Aligned to the top.
Specifies the vertical alignment of text within a text frame.