Keep the object hidden (invisible) for the entire duration of the Storyboard. Duration and Delay are ignored.
If the object is an Image and it contains an ImageSequence (first image is a numbered PNG with a number of numbered images
following it in the same directory) then this Transition will play the ImageSequence in full, adjusting the playback speed so the entire
image sequence is played within the set Duration.
Constantly move the Fill (or Stroke) of the object (such as a gradient or picture) in a particular Direction.
For gradients these should be set to Mirror or Wrap for this effect to work correctly.
If the object is an Image and it contains an Image Sequence play the sequence of images in a constant loop.