ExtendedColorSchemes is a Beat Saber mod that allows the user to have many more customizable color schemes than is currently available in the game. There are 16 more schemes added by default, but you can add (or delete some) by carefully editing the configuration file here: Beat Saber\UserData\ExtendedColorSchemes.json
To help and contribute to the mod, open an issue on GitHub when a bug is discovered, so it could be fixed as soon as possible. Your help is really appreciated.
Special thanks to Kyle 1413 for all his precious help.