Vertical
An Alignment.Vertical specified by bias: for example, a bias of -1 represents alignment to the top, a bias of 0 will represent centering, and a bias of 1 will represent bottom. Any value can be specified to obtain an alignment. Inside the -1, 1 range, the obtained alignment will position the aligned size fully inside the available space, while outside the range it will the aligned size will be positioned partially or completely outside.