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.
16" MacBook Pro Now Available
Apple Showcases Cute Ways Customers Have Customized Their AirPods Cases in Korean Ad
Apple does not offer any of these customization options for AirPods cases in Korea or elsewhere and is merely promoting the creativity of its Korean customers. The ad is featured at the top of Apple's homepage in Korea.
This follows Apple's creative "Bounce" ad that highlighted the newer wireless charging case available for AirPods.