Similar to my issue with a heterochromia gene, there are many pattern suggestions that I feel like should be combined into the same gene slot rather than having only two alleles for a gene slot. Thanks to this post for the inspiration: First would be your standard "Normal Pattern" allele which would not affect the normal pattern gene presentation. Next would be the "Aging Pattern", "Childhood Pattern", and "Adult Pattern" alleles. The "Aging Pattern" would change throughout a nichelin