In the latest Patch 10.1.5 PTR build, we’ve datamined new Dragon Aspect skin colorations for the Renewed Proto-Drake Dragonriding Mount. While colors similar to the Dragon Aspects already exist for the Renewed Proto-Drake, these new colorations come with a darker gradation towards the edge of their wings.
It’s also interesting that these new colors are listed by the old Dragon Aspect names rather than the current lineup in Dragonflight.