4 title: Position and Size (GLSL)
7 creator: Steinar H. Gunderson
13 Change the coordinates and scale to fit within a rectangle.
20 Keyframable rectangle specification.
24 title: Upscale to Fill
26 Determines whether the image will be scaled up to fill the rectangle
27 or whether the size will be constrained to 100% of the profile
37 title: Horizontal alignment
39 Set the horizontal alignment within the geometry rectangle.
50 title: Vertical alignment
52 Set the vertical alignment within the geometry rectangle.