No Job Too Small
The Ghosts favor camouflage in the field and have never used a recognized parade scheme. However, in an urban environment 'Mechs are often painted blood red.
Per Mercenaries Supplemental 2, page 38.
Hunchback, Mercenaries Supplemental 2 (color plates)
The Ghosts' insignia is a gray ghost with bloody teeth. Per FM: Mercenaries Supplemental II, page 38.