NoTabsConfusion

Swipe up with four fingers and Mission Control shows every open window. Most apps are plain black or white, and the windows change place every time you swipe.

This keeps a set color on the three you used last, so you can see where you came from and where you were going.

The one you just left: purple.
The one before that: amber.
The one before that: teal.

Colors show only in Mission Control, and each window keeps its app icon. The menu bar item is NoTabs. Free, open source, and not on the App Store.

Download NoTabsConfusion 1.4

Apple silicon · macOS 26.2 or later · Source

In Mission Control

The last three windows keep their color and a number.

Mission Control with the last three windows outlined. Purple and 1 on the one just left, amber and 2 on the one before that, teal and 3 on the earlier one.

Preferences

The colors, the border, the glow, and the numbers can be changed.

Install

Unzip the download and move NoTabsConfusion into Applications.
Open it. A window named NoTabsConfusion opens, and NoTabs shows in the menu bar. Close the window and the app stays there.
Allow access when macOS asks, so it can see which window is in front. It also needs Accessibility.

Privacy

No account, no ads, and no network requests. Window frames and app icons stay on your Mac. Privacy note.