In iOS 18, iPhone apps have both Light and Dark color options ... To go along with the ‌Dark Mode‌ icons, Apple also introduced a toggle that makes your wallpaper darker.

From using dark mode to disabling background apps ... Simply look for the Phone Wallpaper templates, select the Christmas tag, and browse through countless backgrounds that are ready to download.

In addition to the light and dark mode icons, users can use an eyedropper ... Android's theming is its ability to extract colors from the phone's wallpaper and apply them across the system.