Once I noticed just how many app logos have white-on-black color schemes — including Threads, the BBC, Uber, Apple TV and, yup, The Washington Post — I had to know what the heck was going on ...

"It's a feature on the iOS 18 beta. You can make your background dark plus your icons either light, dark, or tinted (based on the color of your background or whatever color you want)," said one reply.

While Color Filters is turned on, everything you try viewing on your iPhone should now be in black and white. If this is the first time you are trying out the phone's grayscale color scheme, it ...