Enable Button Shapes in iOS to Improve Usability & Make Tap Targets Obvious
One of the major changes that came along with the iOS visual overhaul was the removal of obvious buttons across the operating system and apps found on the iPhone and iPad. While the result is a cleaner, flatter, and more streamlined appearance in iOS, many users have found the removal of obvious buttons to be detrimental to usability, making it difficult to determine what is a tappable target and what is simply text on screen.
That hiccup is exactly what the optional Button Shapes feature aims to resolve, by bringing more obvious button shapes and tap targets back to iOS by using shading and underlining of buttons and actionable text elements.