Why icon skins and app shelves don't match if I change iPad's orientation?

Due to iOS operation system limitations iPad supports only one image for the background, so when you turn your device, icons adjust their placement to the orientation but the background image (wallpaper) remains the same. What we do in Pimp Your Screen is that we include both versions of all 'app shelves' and 'icon skins' - landscape and portrait , so that you can pick the one that corresponds to the orientation you use the most.

You can set the app to display the universal-orientation images only: set the "Expanded Content" switch to OFF which is located at the very bottom of the app's main menu.