After making the wrong keyboard shortcut, a weird rounded rectangle with a thick white border appeared around my cursor and followed the cursor around.

(I was trying to make the shortcut that arranges icons by kind)

Inside the rectangle the screen was almost normal but kind of pixelated. I couldn’t take a screenshot but I recreated in Illustrator:

enter image description here

It was extremely annoying and I had to log out of my session and back in to finish work.

What did I trigger and how do I get out of this horrible thing if it ever happens again?

macOS High Sierra

  • 1
    looks like zoom support.apple.com/en-in/guide/mac-help/mh35715/10.14/mac/10.14
    – anki
    Sep 1, 2021 at 8:32
  • Which one of these shortcuts is it? I tried to replicate and couldn't. It's on High Sierra Sep 2, 2021 at 0:59
  • 1
    See System Preferences > Accessibility > zoom (or equivalent for High Sierra). Likely alt + command + B
    – anki
    Sep 2, 2021 at 3:01
  • @anki ok this was it (alt + command + 8). Weird that the ESC key cannot get you out of it! It’s not even a zoom, it just looks pixelated… make this an answer and I’ll accept it Sep 2, 2021 at 3:29
  • Ah I didn't have my glasses on, it's 8 (:
    – anki
    Sep 2, 2021 at 5:02

1 Answer 1


System Preferences > Accessibility > Zoom in the sidebar.

Shortcut is alt+command+8


  • Actually, it happens when I click "CTRL" and "ALT" at the same time, which is preventing me from using an app's shortcut. Under Accessibility > Zoom, there was Zoom Style > Option and I had to untick toggle zoom with CTRL + ALT. Dec 9, 2021 at 5:28

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