[roughly]

I do this too on my iPhone - like all the really good iPhone settings, it’s an accessibility option, under Display -> Color Filters. You can also set up the “accessibility shortcut” so triple-clicking the side button enables or disables it.

It really reduces the intensity of the phone - you never realize just how garish the color choices are for almost every app out there until you see it in B&W.

[dash2]

This is a genius idea, I'm trying it out now. Had an iPhone for years and never had a clue about this feature. Thank you.

[abyssin]

Thanks for sharing this.