On the new MacOS 26 (Tahoe), Apple has mandated that all application icons fit into their prescribed squircle. No longer can icons have distinct shapes, nor even any fun frame-breaking accessories. Should an icon be so foolish as to try to have a bit of personality, it will find itself stuffed into a dingy gray icon jail.
The left side of the example below shows the old icon for Audio Hijack as it used to appear, while the right shows it rotting away in a Tahoe prison cell:
Källa: Tahoe’s Terrible Icons
