When will it come to KDE, Nvidia’s control center is still only X.
As soon as Nvidia fixes it, as it is still a known Wayland Issue in the Nvidia driver readme Appendix L listed as Driver Limitation.
At least the Gamma/Colour correction bulletpoint changed, from not, to partially supported compared to older driver readme. So maybe there could be hope.
Even if they don’t want to reimplement it into their control center and wait for Wayland I am pretty sure nobody on the Wayland side will even try to touch it until the driver has full support build in.
And it seems that it will be continue like this. 
Regards
Whpa 2021, they are slow… Does any app exist that can change contrast exist outside off the drivers>
Please stop opening multiple topics for this. It’ll happen when it happens, either because NVIDIA adds it to their control panel, or because KWin adds it to KDE’s. You’ll just have to be patient.
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