Adjust iPhone Duo's Outer Display to Accommodate Your Case

On iPhone Duo, Apple includes a display setting for cases or frames that partially cover the left edge of the outer display.It's called Shift Left Edge, and it insets the display edge so that on-screen content isn't hidden beneath the case.We first covered the setting in September, and Apple has since documented it, revealing that when you fit Apple's official iPhone Duo Case, a prompt automatically appears on the inner display to direct you to the setting.