Original Source:
https://twitter.com/chirpxiv/status/1618078984553779200

Palette+ provides a greater degree of character customizability by allowing the user to pick out colors for skin, hair, eyes, etc, from a colour wheel, which may then be set up to persist through loading screens.

If you’re having any issues or need support, feel free their Discord

This starts as a plugin, so the XIVLauncher is required. 
Please go there before grabbing the repo below if you are new to plugins. 

https://raw.githubusercontent.com/chirpxiv/PalettePlus/main/repo.json