In your ketucari's genotype, glass is denoted by the letters "nGs" (heterozygous) or "GsGs" (homozygous).
In its heterozygous form, glass has a pass rate of 25%. Homozygous glass has a 50% pass rate.
Color and Shape
The glass effect should be created by using white, or something close to it, and adding a sheen to the ketucari's coat. Unlike shimmer, glass does not have multiple colors as it does not create iridescence, only shine. The opacity of glass can vary. The base coat must be identifiable underneath.