Autopalette

Autopalette is a clientside forge mod for minecraft that uses an asset loader to generate palette swaps of existing textures at runtime, when resources are loaded. Autopalette does not need to be installed on servers and does nothing when installed on servers.

When installed on a client, Autopalette enables the loading of autotexture jsons to generate palette-swapped textures when resource packs are loaded or reloaded. These textures do not replace the originals, and can be used alongside them.

Information on creating autotexture jsons can be found on the github readme at this link

An example mod that uses autopalette to create the texture used for the dark cobblestone block above can be found at this other link