There have been quite a few requests along these lines. Requests to be able to match the look of Spock's eyelids and under brow have probably been most common. The other included species have also featured shading over the eyes in the shows. For example, dark eyes work great on the more warrior type species."Eye shadow" is in quotes as the intent isn't necessarily make-up. Our interpretation from the shows is more that the shaded eyes are a natural inherent characteristic of the species. And the palette options made available reflect that. The final name might change.