If you’ve ever wanted to show someone something from the display of your device without being in physical contact with them, then you might choose to capture a screenshot and send the resulting image to that person of choice. All iPhones and iPads support screenshot-taking, and if you’re familiar with the process, you should already know that iOS generates a bright white flash when the screenshot button sequence is invoked to simulate a camera flash.
It’s a nice touch to make the screenshot experience seem more realistic, but if you’re ever in a dark environment, such as peering at your phone while in bed, the bright white flash can be tear-jerkingly blinding. That’s why iOS developer XCXiao has released a new jailbreak tweak dubbed Smart Dark Flash.