The standard paint scheme for the Ghost regiments begins with a base coat of gray so light that it appears almost white. Accenting is usually white or darker gray. The regiment accents its vehicles in dark gray. In place of a regimental insignia, the members of the Eleventh decorate their ‘Mechs with haiku. Typically, unit members inscribe these poems one after another, beginning at the upper left shoulders of their ‘Mechs, winding around their ‘Mech’s torso and down one or both legs.

Per FM:Draconis Combine, page 119.

Other references:
Jenner, CM: Kurita (p 104)


Insignia:

The Ghost regiments do not have a regimental crest, as that designation serves as an administrative classification more than anything else. Per FM: Draconis Combine, page 112.