Dear Scratch Community:
I've been working on a project with a scrolling background, but I can't get the Scratch Desktop client to accept a size larger than 150% for tall sprites. The initial plan was to make a very tall sprite for each level, then scroll it vertically as part of a background.
Smaller, square sprites (as tested in the project) seem able to be scaled up to thousands of percent size. A tall sprite (100 pixel width*1000 pixel height, or 1000 pixel width*5000 pixel height)) seems to lock at 150%, and there seems to be an automatic resizing function that means that even if the sprite is thousands of pixels wide, it will be automatically shrunk down so that it cannot cover the stage. This means that background scrolling, at least in the simple way I'm trying to do it, is not possible for large vertical background sprites.
Is there something I'm missing regarding the nuance of how these functions work, or is another method required to load tall sprites for vertical scrolling?