This mod allows resource packs to modify the colors of redstone in a text file. This mod works on Minecraft versions 1.17 and higher.
In your resource pack, create the directory: assets/colorstone/colors
In this directory, place a text file named anything you want, as long as it ends in ".colorstone"
The contents of this text file define the colors of redstone for every power level from 0 - 15. Each line in the file is able to define the color for one power level. The information is specified with the following format:
powerlevel=colorhex
For example, the following line sets the color of power level 4 to grey:
4=7f7f7f
You may change some of the colors, all the colors, or even no colors in this file. If any line contains invalid format, it will be skipped.