I couldn't find specific tracks with galaxies, and few models have galaxies in their training, it's simple, but I thought the results were good.

2 types of galaxies, spiral and elliptical, with 4 color variations, red, blue, rainbow and neutral below how to call each one of them.

spiral galaxy red/blue/rainbow.

for neutral only spiral galaxy.

elliptical galaxy red/blue/rainbow.

for neutral only elliptical galaxy.

It also works with colors that have not been trained, I tested green, orange, purple and pink and they worked almost perfectly.