scroll_direction
Controls the direction in which the text will flow.
Default Value
Blank – equivalent to Left.
Valid Values
Blank or 'down' (top to bottom), 'left' (left to right), 'right' (right to left) or 'up' (bottom to top).
'Down' - top to bottom
'Left' – right to left
'Right' – left to right
'Up' - bottom to top.