SUMMARY Night color resets color correction for monitor STEPS TO REPRODUCE 1. Install custom ICC profile for you monitor via system settings/color correction 2. Enable night color OBSERVED RESULT ICC profile is not applied EXPECTED RESULT ICC profile applied correctly SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: archlinux (available in About System) KDE Plasma Version: 5.17.0 KDE Frameworks Version: 5.63.0. Qt Version: 5.13.1 ADDITIONAL INFORMATION
I can confirm this bug, when the Night Color feature is enabled the gamma correction setting doesn't work anymore Manjaro KDE KDE Plasma Version: 5.17.1 KDE Frameworks Version: 5.63.0. Qt Version: 5.13.1 Thanks.
*** This bug has been marked as a duplicate of bug 413134 ***