Describes screen orientation.
Currently this is only relevant on mobile devices.
See Also: Screen.orientation.
| Portrait | Portrait orientation. |
| PortraitUpsideDown | Portrait orientation, upside down. |
| LandscapeLeft | Landscape orientation, counter-clockwise from the portrait orientation. |
| LandscapeRight | Landscape orientation, clockwise from the portrait orientation. |
| AutoRotation | Autorotates the screen as necessary toward any of the enabled orientations. |