Army Color
Retro warplane color scheme, taking advantage of the material adjustments we were able to make with our army color system.
Classic mech theming
Neon
Hot Rod! Some of this design language eventually made it over to the Bone Brigade too
Military mode
Slightly junker / hard steel look
I loved the potential for non-english speaking factions
Simple patterns
An Elite squadron from one of our existing factions
Crossover potential?
One of the most fun things to work on were army colors for each Faction and also just for whatever theme we felt like working on.
Our army colors were based on a 3-color system, so as standard each color got a Primary, Secondary and Accent color that mapped to the Unit textures. We were also able to control the material properties per color region, so even without concepting we could develop some very simple but effective metallic and fancy looking color schemes.
We were also able to do per-army-color texture swaps - so while most of your army would use the color swap system, a few select (usually larger for oomph) units would get unique versions with extra details or fancier logos etc.
Thanks to https://www.artstation.com/bbickle for all his hard work on this system!