Android 14 adds a very useful accessibilty feature topping Apple's implementation of it

The iPhone and iPad can also set off the rear-facing flash to alert you of a notification
You can get a preview of the Flash notification that you've set by tapping on the Preview button near the bottom of the display. If you enable the Camera flash, the rear camera flash will go off twice to alert you of a notification which is great when your phone is locked or is lying on a table face down. If you enable the Screen flash, when a notification arrives on your Android phone, the screen will turn yellow twice to alert you to the notification. If you have both enabled, when a notification comes in the rear flash will go off twice and the front screen will go yellow twice.
Enable Screen flash and you can choose from 12 options what color your phone screen will blink twice to alert you of a notification
Now as we said, if you choose to enable the Screen flash, the default color is yellow. But you can change that by tapping on the color "Yellow" as written out under "Screen flash. You'll see three rows of colored dots with four columns. The current color, the Yellow default, is circled. Change the color of the Screen flash by selecting the color you'd like to see to remind you of a notification. Press "Done" at the bottom right of the box if you're sure that this is the change you want to make.
If you want a Preview, tap on "Preview" on the bottom left of the box to see what the change will look like.
If you don't see the feature yet, it's probably because you don't have the Android 14 beta installed. We should see the final version of Android 14 released by Google any day now.
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