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.
Per FM:Draconis Combine, page 112.
Catapult, CM: Kurita (p 104)
The Sixth Ghost uses a very traditional insignia of a Japanese bonsai tree against a setting sun. Per FM: Draconis Combine, page 116.