Apple & # 39; s iOS doesn't have the best reputation when it comes to customization, but with every new iOS version we get, there are more options to personalize. Your iPhone is packed with plenty of tweaks and hacks to really make the device feel like you, and one of them is a fun but useful mod that turns icons on and off for switches on your iPhone.
In iOS 13 or later, activating these icons couldn't be easier.
Go to Settings -> Accessibility -> Screen & Text Size, then tap the switch next to "Power labels". Now your enabled switches will have an "I" or "1" depending on your interpretation, while disabled switches will show an "O" or "0". This setting applies to all switches in the Settings app, but it also applies to preferences in all supported apps.
While these icons don't really do anything they serve two purposes. First, they add another visual clue to know if a setting is on or off. Apple's Human Interface guidelines state that "adding labels makes it easier to tell if a switch is on or off." Second, it serves as a nice aesthetic choice for your switches.
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