[mbjorkegren]

Could this be used by colorblind people to remap hues? Like for red apples on a green tree, you could remap red to orange.

[_Microft]

I can imagine that this could be a way to adjust the effect as needed.

Windows has built-in color filters already but to my knowledge it does not allow to customize them, though. Open this in the run dialog (Win+R) to directly open to the appropriate settings page: ms-settings:easeofaccess-colorfilter

[CharlesW]

In case it's interesting for you, Windows and macOS have OS-level support for this:

https://support.microsoft.com/en-us/windows/use-color-filter...

https://support.apple.com/guide/mac-help/change-color-filter...