Night mode is an automatic setting which takes advantage of the new wide-angle camera that's in the iPhone 11 and 11 Pro models. It's equipped with a larger sensor that is able to let in more light, allowing for brighter photos when the light is low.
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Apple Tweaks Website Design with Darker Navigation and Animations
Apple made some slight design changes to their website tonight, with a new dark navigation bar, as well as spring loaded and slide-in animations for products. The new design resulted in several hours of downtime for the Apple online store.
Some last minute part numbers had suggested the long awaited white iPhone may have been making an appearance, but that was not the case. The online store has adopted the new darker navigation bar, but there are no signs of new products.