Hello! I did not code the viewport with this in mind, but it's definitely an interesting proposition. I will keep it in mind for a potential future update! In the meantime you can potentially experiment with the xpan property outside of the viewport, which does seamlessly loop images. It won't work with how the viewport is set up currently, since it's expecting a fixed-size displayable.
That's great to hear! I will keep this tidbit in mind when I develop a future visual novel with this script!
Sorry
that I haven't mentioned this before suggesting this, but maybe
in this potential future update you could consider expanding this
parallax code to image scenes as well? Image scenes as
in, scenes and labels that have image displayables representing backgrounds and characters that you change
expressions of? I did try to insert a LayeredImage placeholder
into this parallax viewport, and it did work! With the limits of being
an image on a screen of course (Can't move around unless animated by
transforms, 'mouth-flapping' and other codes that involve changing images in a scene don't work, etc)
(this question probably sounds a bit advanced and probably a different utility entirely since I suspect it might involve rewriting the code of the entire thing, but it could be possible...)