Magical gene / speckle and dust

Wishstar

One four-pointed sparkle sits high on each flank, with a long tail below it and a soft bloom around it. It holds its light after dark.

What it can come out as

Outcome	Carrying
Wishstar	`Ws/Ws` · `Ws/ws` · `Ws/n`
Wishstar, coloured	`ws/ws`
Wild type	`ws/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 3,571 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
`Ws/Ws`	Wishstar	0.001% — 1 in 100,000
`Ws/ws`	Wishstar	0.004% — 1 in 25,000
`Ws/n`	Wishstar	0.019% — 1 in 5,263
`ws/ws`	Wishstar, coloured	0.004% — 1 in 25,000
`n/n`	Wild type	99.972%

Its gene carrot

The file

common/src/main/resources/horsegenetics/genes/wishstar.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.wishstar`
Phase	magical — it adds signed colour in phase 3, after the pigment has resolved
Priority	333 — where it sits in the one `(priority, key)` paint order
Alleles	`Ws` · `ws` · `n`
Varies per horse	1 value drawn once off the expressing allele copy, so a foal that inherits the copy inherits the look
Built from	SVG, TOWARD, emissive

Why it is built this way

The smallest marking in this set: about 2 units wide and 4.4 tall against a 22-unit barrel. The bloom is the same path at roughly twice the size with the softness wound right up and the opacity down, painted first so the star sits inside it.

Both layers use fit meet, so the drawing keeps its aspect and the viewport is a bound rather than a stretch. sizeU is set from the path's own 282:519 bounding box - asking for a square viewport here would squash the star and it would not look deliberate.

Drawn shape, so it is the same on every horse and mirrored onto both flanks by the side plane.

Arrived at priority 134. Moved to 333: speckle and dust, beside stars (330) - a small mark, so it paints late. The arriving number was taken, or sat in a band whose family does not describe this marking - priority is both the paint order and the family the sidebar files a gene under.

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.

Wishstar

A single lit white sparkle on each flank, tailed and haloed.

the bloom around it — SVG, painted with TOWARD
the star — SVG, painted with TOWARD, and it glows

Wishstar, coloured

The same sparkle in the colour this line carries.

the bloom around it — SVG, painted with TOWARD
the star — SVG, painted with TOWARD, and it glows

Wild type

No star.

Paints nothing.