That’s what i’m thinking, colors should be able to be changed in custom scenario.

That’s actually already here, just in level making, you can set AIs colors to whatever you want.

You can set players (only you see the color you set tho) to a color of your liking during the game.

list of players>player name>change color> change it to color of your liking.

It will say this ---------->
You can change the color that (the player's name goes here) appears as. This change only affects your own computer; other players will still see this player's true color. This is useful if you're having a hard time telling their color apart from others.

Edited 11/4/2019 23:56:43

I think in a game beyond 40 there it need some mods beside the host. And also the host with his mods should be able to decide which color to assign to which player - Also good in huge diplo games where you build alliance: similar colors to the same alliance (mod in this case to a alliance leader)