The December 2022 Preview Update for Windows 11 patch (KB5020044) had caused visibility issues with the Windows task manger for users who were not using the “light” or “dark” but rather “custom” color theme. Microsoft Corporation 252,75 +4,94 +1,99% has fixed this issue with this month’s patch (KB5021255) released on Patch Tuesday. No word yet however, what this update might have broken (just kidding…I hope).
“This update addresses a known issue that might affect Task Manager. It might display certain elements in the user interface (UI) in unexpected colors. Some parts of the UI might not be readable,” Microsoft explained.
“This issue might occur if you have “Choose your mode” set to “Custom” in the Personalization > Colors section of Settings.”