Choose one of the 6 available patterns. (See images.)
Describe the colours you want in any sensible way. #HEX values or an image are preferable. Gradients for colours are also an option. (Pay attention to how many colours your chosen pattern has.)
Give it a name (or I'll do it myself)
Post all that info in the comments below.
Wait for mod to update and download it again.
I will select the good onesβ’, may tweak them a bit to look good in the game, and then add them to the mod.