Magical gene / lines and strokes

Stellar

Angular glyphs of two to four crossing strokes, scattered over the shoulder, withers and front of the barrel, each with a satellite dot or two beside it.

What it can come out as

Outcome	Carrying
Stellar	`Ste/Ste` · `Ste/Sec` · `Ste/n`
Coloured Stellar	`Sec/Sec`
Wild type	`Sec/n` · `n/n`

How each one is actually drawn - region by region, and the layers it is built from - is on the coding tab.

Crossing two of them

Finding one

About 1 in 595 wild horses is born showing this. That is the whole of the supply: catch one, or make one with the carrot below. Breeds set their own pools and a breed built around this gene will carry it far more often than the wild population does.

Wild pair	Shows as	How often
`Ste/Ste`	Stellar	0.006% — 1 in 16,667
`Ste/Sec`	Stellar	0.024% — 1 in 4,167
`Ste/n`	Stellar	0.114% — 1 in 877
`Sec/Sec`	Coloured Stellar	0.024% — 1 in 4,167
`n/n`	Wild type	99.832%

Its gene carrot

The file

common/src/main/resources/horsegenetics/genes/stellar.json — a data-driven gene, not a Java class. It is listed in the index.json beside it and registered by Genes' class initialiser at startup.

Key	`horsegenetics.stellar`
Phase	magical — it adds signed colour in phase 3, after the pigment has resolved
Priority	364 — where it sits in the one `(priority, key)` paint order
Alleles	`Ste` · `Sec` · `n`
Varies per horse	3 values drawn once off the expressing allele copy, so a foal that inherits the copy inherits the look
Built from	SPOTS, STROKES, TOWARD

What it paints

Each outcome, described the way the gene file describes it, and then the layers that draw it in the order they are painted. The prose is the part a reader checks a bake against; the list underneath is what the engine actually did.

Stellar

Larger and far sparser than Stars: eight to thirty glyphs a side, each a small bundle of straight or shallow-arced strokes meeting at an angle, with one to three little dots within a hand's breadth of it. The strokes point no particular way - a stellar horse's glyphs are rotated at random. Nothing behind the flank, nothing below the elbow.

the crossing strokes of each glyph — STROKES × SPOTS, painted with TOWARD
the strokes that cross them — STROKES × SPOTS, painted with TOWARD
the satellite dots beside each glyph — SPOTS × SPOTS, painted with TOWARD

Coloured Stellar

The same marking in a colour the line carries rather than in white. Fully recessive: it takes two copies, and a single copy beside the white allele shows white. It never gives blue eyes, whatever the white form does.

the crossing strokes of each glyph, in colour — STROKES × SPOTS, painted with TOWARD
the strokes that cross them, in colour — STROKES × SPOTS, painted with TOWARD
the satellite dots beside each glyph, in colour — SPOTS × SPOTS, painted with TOWARD

Wild type

No glyphs.

Paints nothing.