Last, you need to be running iOS 14 or later on your iPhone. Second, you'll need to have the 'Add Untrusted Shortcuts' switch enabled in Settings –> Shortcuts if it's not already. It's pre-installed on iOS 13 and later, but if you deleted it, you can re-install it from the App Store. Don't Miss: Auto-Change Your Background with Big Sur's Dynamic Wallpapersįirst, you'll need the Shortcuts app, which is required for any shortcut.The trigger could be for a certain time of day, whenever you open an app, or even when you leave your home. While we wait for that official 'Dark Mode' trigger, which may not ever come, we can build an automation that checks to see whether Dark Mode or Light Mode is currently enabled and runs a shortcut telling iOS to switch the background on your home and lock screen to the image you chose for either Dark Mode or Light Mode, depending on which is set. That doesn't mean you're out of luck, though, because you can use Shortcuts to build a workaround until Apple gets us an official 'Dark Mode' option for automation.

There are still and live wallpapers on your iPhone that can go dark when Dark Mode is active or light when Light Mode is on, but there's no easy way to do the same for custom backgrounds.

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