Is this a reference to the Luminoth  from Metroid Prime 2?
Edit - Turns out it is! From the github:
"Why the name?
The Dark Visor is a Visor upgrade in Metroid Prime 2: Echoes. Designed by the Luminoth during the war, it was used by the Champion of Aether, A-Kul, to penetrate Dark Aether's haze in battle against the Ing.
-- Dark Visor - Wikitroid"