Clan Goliath Scorpion

Alpha Galaxy

The Rock Minders 

's Standard paint scheme is slate gray with black highlights or camouflage mottling.

Per FM: Warden Clans, page 111

Other references:
Warhawk, FM: Warden Clans (plate 6)

Color Scheme
Insignia

The towering obsidian spire of Moreau's Dagger dominates the insignia of Alpha Galaxy, painted in black on a blood-red oval field.

Per FM: Warden Clans, page 111.