on june 16, apple quietly introduced a visual easter egg from ipados 26 into ios 27—the magnifying glass in the preview app icon has now been upgraded into an interactive, dynamic element. when users tap and drag the magnifying glass on the icon, the interface responds instantly: text and images undergo natural optical distortions following the lens’s trajectory, delivering a smooth, delicate real-time transformation effect.
this design didn’t appear out of nowhere. since the first version of the preview app on mac in 2001, its icon has used the motif of a “magnifying glass covering a photo,” symbolizing the core functions of image viewing and detail exploration. over more than two decades of evolution—especially after last year’s unified overhaul under the liquid glass design language—the icon was drastically simplified, retaining only the pure outline of a magnifying glass while stripping away superfluous layers to return to the essence of the tool. well-known apple ecosystem blogger basic apple guy has systematically traced the evolution of the macos preview icon from 2001 to 2025, fully illustrating its visual journey from skeuomorphic to minimalist.
notably, this interactive easter egg was initially exclusive to the preview app in ipados 26, where users could long-press the icon on the home screen to trigger a drag-and-drop experience. now, with the arrival of ios 27, this playful interaction has officially expanded across platforms, becoming one of the rare visual details in ios that combines functionality with a touch of whimsy. it both continues the longstanding “focus–observe” metaphor of the preview app and, through subtle animations, conveys apple’s ongoing refinement of human–machine interaction.
the preview app has gained an entirely new dimension of interactivity.
