As icons continue to change across Appleâs platforms, I have thoughts. They mainly revolve around two perspectives:
- What I think of icons as a long-time user of Appleâs platforms.
- What I think of icons as a digital collector and physical archivist of icons.
Letâs see if I can articulate my thoughts.
Apple Recommends Making Icons With Icon Composer For âMore Expressivityâ
In âCreate icons with Icon Composerâ from WWDC 2025, Lyan Bewry from Appleâs Design Team gives the rationale for why developers should use Appleâs new Icon Composer:
Icon design is moving from a past of simply static images, to a future of expressive, multi-layered artworks that respond to user input and adapt between appearances. Theyâve become a much richer and more integrated experience on-device.
Catch that? Icons are moving from a âstaticâ past to an âexpressive, multi-layered [âŠ] much richerâ future.
You may have noticed this in some of Appleâs latest OS releases, how lighting effects, customizations, etc., can all affect what an icon looks like at any given moment within the operating system.
So what are these .icon files made by Icon Composer?
Icons Are Software Now
In the Accidental Tech Podcast episode 699 âNot the Correct Squircleâ John Siracusa talks about some of the technical details and differences between app icons in macOS 26 (Tahoe) and 27 (Golden Gate):
These .icon files, this format that Apple came up with, itâs a bunch of resources and a recipe. So itâs like bitmaps, vector images, layers, recipes and effects. Thatâs what it is. And these icons are assembled on the fly by the operating system. It doesnât burn up bitmaps of them. I take your ingredients, I assembled them, I composite them, I apply your layer effects, and then eventually it renders a bitmap that it keeps in memory somewhere.
Who is thinking about backwards compatibility in their icons?
Tahoeâs effects are different than 27âs effects [âŠ] And also, 27 has effects that 26 doesnât support. And 26 won't even read the .icon files from 27, which makes everything complicated.
Complicated indeed.
Schrödingerâs Icon
As noted, the days of a single, static image for icons are over. An app icon is no longer a PNG file.
Itâs a bit of a Schrödingerâs icon if you will. Thereâs no longer a universal answer for âWhat does your app icon look like?â An icon is simultaneously light, dark, glass, tinted, etc.. Only once it is âobservedâ â that is rendered at runtime on a device with settings applied (user preferences, device angle, etc.) â can you really know what it looks like.
An icon now has a runtime.
My Two Cents
I donât know.
Icons are effective because of their ability to be quickly recognizable and memorable. Visual simplicity and consistency support that.
Making something more âexpressiveâ and âricherâ, to me, means conveying more. But icons are meant, to a degree, to convey less. Only the essential. Thatâs what makes them effective. Thereâs definitely a point where, the more they convey, the less effective they are at their purpose.
The more you move away from a singular, visual representation, the more room there is for confusion and greater cognitive effort for discernment.
Take, for example, Appleâs Phone app. Whatâs the icon for it? Can you picture it in your head? Itâs a green icon with a white phone glyph. Thatâs what it was in the original iPhone keynote (and itâs what the Phone app will always be to me). Iconic!
But wait! Now itâs also a black icon with a green phone glyph if youâre in dark mode. And thereâs more! Itâs a clear glass icon with a phone glyph if youâre in clear mode. And! Itâs [insert color here] with a phone glyph if youâve tinted it.
Consistent color is a strong ingredient in aiding memorability and recognizability. Look at Coke:
- Red can? Coke
- Black can? Coke Zero
- Silver can? Diet Coke
Simplicity matters. It aids recognizability and memorability. If you start making it more complicated and more varied, you lose what made it simple, recognizable, and memorable to begin with.
And what are app icons but visual tools for immediate recognizability?
Anyway, now that app icons have a runtime and will increasingly vary in their appearance, Iâm not sure how to archive them anymore.
This story is still developingâŠ
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