I see many reviews that arent satisfied with the morph selection and wanting sunglow and tangerine included but those are polygenic traits and are almost impossible to calculate. If you breed orange to nonorange then the result will most likely be in between the more you breed orange to orange the more curb Tara the the colors. It is the same principle as bolds and stripes. What I would like to see is ball pythons, crested geckos, and maybe blue tongues. If you would like some helpful apps for leopard geckos try leopard gecko 101 or Ron Trempers morph guide both of them really helped me get started and I still use them. I hope this was helpful! :)
Zacharyaaron94 about Reptile Calculator, v2.0