A client-side Fabric mod that makes a couple color-related changes:

• Sorts colored blocks and items (like wool and dyes) by color in the creative inventory.
• Makes jeb_ sheep cycle through colors in a more rainbowy fashion.
• Changes the colors of the vanilla "Colormatic" splash.

The color order for each of these can be changed individually in the config screen accessible through Mod Menu (CurseForge / Modrinth). Note that some settings use dye colors (with underscores instead of spaces) while others use formatting code names.

Requires Cloth Config (CurseForge / Modrinth) version 4.9 or later.

Links: CurseForge · GitHub · Modrinth