This is an interesting calyx double Sinningia with major heritage of Dircaea clade (taxonomy of Sinningia family). Mine is still a young plant, the double calyx is not clear.
Generally speaking , the color of foliage varies, the color of flower varies as well. These are my Smithiantha hybrids of my former varieties Designer's Bridal Saree and Designer's Trance. I was expecting large/dense flower spike with color enhancement as mentioned about 1.5 years ago in my sale list of seeds. Let's wait and prove how will the color of their flowers show.
We love to grow plants and most of the time we get along with the growing period that we see only leaves, the flowering moment is brilliant but just a small part through out the growth of our plants. Some Gesneriads such as Episcia or Smithiantha will not bore you as their foliage is brilliant as well.