KWin now supports ICC profiles: In display settings you can set one for each screen, and KWin will use that to adjust the colors accordingly.
[…]The Plasma 6 beta is already shipping with that implementation in KWin, and with a few additional steps you can play most HDR capable games in the Wayland session.
↫ Xaver Hugl
I’ll admit colour management and HDR is a bit outside my wheelhouse, but I do know both are essentially vital for quite a few digital professions, and that support for them on Wayland specifically has been subpar or missing entirely. It seems progress is being made on these topics, and that’s good news.
I thought ICC Profiles had been added ages ago, is this new to Wayland, or is the new thing that you can do it per screen. I know Gnome has had ICC profiles for ages. In fact I was getting errors about it on my system I have set up with 5 monitors and two GPUs under Chromium (still need to look at why that’s happening). HDR finally coming to Linux is nice though, hopefully it doesn’t stink as much as it does on Windows.