Or D55/D50 rather, in Settings > Devices > Colour The built-in colour profiles aren't accurate in an absolute way but they do let you change things in a relative sense. It seems like the system assumes the default colour temperature is around 6500K, so choosing D65 doesn't change anything (even though your monitor may be well above 8000K in reality). But choosing D50 or D55 will lower the colour temperature to something warmer (redder) like night light does.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1728342 Title: Some applications disable "Night Light" and it is not reenabled upon exiting application To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1728342/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs