Blizzard - Completely patternless, with only faint traces of yellow coloration remaining, these are quite possibly true leucistic Leopard Geckos. A high-yellow variant is often referred to as 'Banana', although this term is more properly applied to specimens double homozygous for Murphy Patternless and Blizzard. Another simple recessive genetic trait.
Since there are 3 lines of albinos that can not be interbred, Bell, rainwater, and tremper. Heres a list of them
The Learning Center - Leopard Gecko Morphs
The midnight looks like a normal pattternless to me though. with not much yelllow on it. My female looks like that depending on how she is. sometimes shes dark as night others shes got more yellow showing.