What visual change defines a Super Yellow Belly, which has two copies of the gene?

Significantly greater pattern loss and even more intense coloration, often bordering on solid yellow or orange

The Super Yellow Belly results from inheriting two copies of the co-dominant Yellow Belly gene, leading to an intensified expression of the single-gene traits. This results in a drastic visual transformation where pattern loss becomes much more profound than in a heterozygous Yellow Belly. The coloration becomes even more saturated and intense, frequently leading to a phenotype that appears almost entirely solid yellow or orange across large portions of the body. This heightened expression means the remnants of the dark markings are minimal, and the overall illumination of the lighter areas reaches its peak intensity, illustrating the synergistic effect of having two copies of the responsible gene.