7th Legion of Vega
The Legion regiments lack a formal color scheme, though most units lean towards reds and grays.
Per FM:Draconis Combine, page 121.
Other references: none
The Legion insignia is still a rat (now known as "Tikki"), though the rat's current incarnation is slightly less scruffy and now wields a Japanese-style sword. Per FM: Draconis Combine, pages 121.