I've noticed that the built-in wallpapers do NOT resize on my 6s+ when the home screen rotates to landscape mode. But when I select any other photo to be my wallpaper, it always zooms way in for landscape mode. Is there any way to create my own background image that won't resize when rotating? See pictures below... The first 2 screen caps used the built-in wallpaper (iOS 9.1), and the last 2 used my own custom wallpaper that I found on the internet.