Storyboardingboth dimensions mentioned is equal to 640x1440=1920x480=921600, so I assume other dimensions should not against RC right? like 800x1152=921600
The maximum dimensions for tall or wide scrolling images are 640x1440 and 1920x480 respectively. This is for the sake of gameplay performance, image loading time, and filesize.
a reference to my map thread: t/393017 would be nice someone clarify this.