Custom fleet color scheme

Hello, I've been read thread in forum about modding but I don't know how work. I haven't seen thread about how modify color scheme fleet. I would like if you can me help to do this.

Hey carcanosc,
Currently we can move sub-factions around to give factions varying color schemes.
Creating a new color scheme from scratch is theoretically possible, however we don't currently have enough experience in Unreal (nor insight from the Devs) to add it to the game files.

Modded Niad/Necron colors on Imps:
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Hi how can I change the color scheme from tzeentch to night lords, or replace tzeentch with night lords?