That's all very nice, but can you predict eye color from a genetic test with reasonable confidence?
That a very simple question and the answer is apparently a resounding no.
https://pubmed.ncbi.nlm.nih.gov/32488945/
https://www.science.org/doi/10.1126/sciadv.abd1239
The second study demonstrates that more than 50% of variance in eye pigmentation can be explained by simple additive effects.
“ We identify 124 independent associations arising from 61 discrete genomic regions, including 50 previously unidentified. We find evidence for genes involved in melanin pigmentation, but we also find associations with genes involved in iris morphology and structure. Further analyses in 1636 Asian participants from two populations suggest that iris pigmentation variation in Asians is genetically similar to Europeans, albeit with smaller effect sizes. Our findings collectively explain 53.2% (95% confidence interval, 45.4 to 61.0%) of eye color variation using common single-nucleotide polymorphisms.”
Hardly a resounding no.