That's not quite true: the compositor needs to support it. There's a protocol [1] for it that's supported by a redshift with a patch [2]. It also works out the

That's not quite true: the compositor needs to support it. There's a protocol [1] for it that's supported by a redshift with a patch [2]. It also works out the box for any wlroots-based [3] compositors, like sway [4]. [1] https://github.com/swaywm/wlr-protocols/blob/master/unstable/wlr-gamma-control-unstable-v1.xml https://github.com/swaywm/wlr-protocols/blob/master/unstable... [2] https://github.com/minus7/redshift/tree/wayland https://github.com/minus7/redshift/tree/wayland [3] https://github.com/swaywm/wlroots https://github.com/swaywm/wlroots [4] https://github.com/swaywm/sway https://github.com/swaywm/sway