Modify surface flinger saturation on your android to your liking. Should work on any ROM as it tweaks settings of SurfaceFlinger the default android display manager. You need a rooted android for this app to work.
Supports devices from Android 5 Lollipop (API 21) onward.
https://sourceforge.net/projects/sa2ration-2026/files/
This is a fork of Sa2ration Enhanced by Miguel Ángel Ortiz Peñaranda
https://sourceforge.net/projects/sa2ration/
https://sourceforge.net/p/sa2ration/code/ci/master/tree/
which was a fork of the original project Sa2ration, from Zacharee.
https://xdaforums.com/t/app-root-sa2ration.3845851/
https://github.com/zacharee/Sa2ration