My attempt to fix the scrolling sky.
The scrolling sky glitch happens when you create doors that point to rooms with scrolling sky backgrounds, as the game needs additional data to load the gfx correctly (which is hardcoded in the original SM). This patch tries to set the correct value based on the Y position of the screen in the room you're about to enter through a door. It still messes up sometimes during loading from a save station, and Idk if it works with the ocean background anymore.
So proper testing/adjustments is needed eventually.