The current icons really aren't that good. Looking at apple specifically: The facetime and messages icons are almost completely indistinguishable. Get angry and say I'm blind, but so is a lot of the userbase - like legitimately, legally blind people.

The camera icon on iOS is just a fucking camera lens with a grey background. No context.

The calculator one is actually pretty good.

The photos one is also bullshit lol.

FaceTime is a video camera, messages is a speech bubble. They look nothing alike except they share the same colors?