I am building a 2d game using SpriteKit for iPhone. It is inteded to only be used horizontally. I have tested it with every iPhone and it scales proportionally perfectly. However, when I was testing it out on an iPad, in one particular menu, a couple buttons were a bit off-centered, looking weird and obviously demonstrating it wasn't intended. I don't really expect this to be an iPad game, but would it be an issue for approval?
Also, I have employed SKNodes to function as for example back buttons in some of my menus. This nodes use png's that are around 1000x1000px. Is this allowed, to use nodes for my UI that use png's with custom sizes?