Inheritable Coat Color

Offspring of sheep receive their coat color from both parents, with rules that include dominant and recessive forms, incomplete dominance and sex-linked alleles. Several interacting genes set the color: one produces the black melanin pigment, another the yellow uranidin pigment, and a metabolic enzyme controls how pigment attaches to the wool. Dilution genes change color intensity, a pink mutation gene is included, and special genes for magenta and green follow co-dominance.

The mod is built as an example on top of Chromosome Lib, which must be installed alongside it on Fabric or Forge. Vanilla sheep breeding uses a simple color rule, and this mod swaps it for a system based on real-world Mendelian inheritance, also affecting wool characteristics. The server needs the mod, while players may add it to their clients. Builds cover 1.20 – 1.20.1, and the latest files target 1.20.1, dated 2025-11-18. The code is licensed under the GNU Lesser General Public License v2.1 only, so it is open source, with public source code and an issue tracker.