These are the color icons this mod puts in the custom class icons screen in RPGO (replacing the monochrome versions).

Imported icons from the Proficiency class pack
Imported icons from Amalgamation classes
Abductee
Alien versions in sectoid pink-grey and in green
Assassin
Astronaut
Atom
Alchemist (version of "Atom" with no electrons, imported from Rusty's Alchemist mod)
Autobots
Avenger
Barbed Wire
Bear
Big Game Hunter
Biohazard
Biologist
Bolt
Bomber
Brawler
Champion
Coast Guard
Cobra
Codebreaker
Combat Engineer
Combat Medic
Communications
CPU Expert
Cyborg
Dasher
Decepticons
Defender
Dog
Double Pistols
Dragoon
Driver
Empire
Explosiver
Fire Support
Flame
Ghost
GI Joe
Grenadier
Grunt
Guide
Halloween
Hand
Helicopter
Hunter
Jedi
Juggernaut
Knight
Knuckler
Machinist
Medalist
Med Robot
Mercenary
Miner
Missiles
Ninja, in black and brown versions
Observer
Paw
Peacemaker
Pegasus
Physicist -- Replaced by "Atom" and "Alchemist"
Pilot
Pioneer
Pistol
Planetary
Polynesia
Priest
Punk
Radioactive
RayGun
Recon
Rifle
Rocket
Rocketeer
RPG
Sailor
Samurai, with red or black face mask
Sattelite
Scientist
Scrapper
Seals
Sentry
Shinobi
Skull, in white and brown versions
Smoke, (smoke grenade) in black & white and olive green versions
Sniper
StarTrek
Stronger
Sunglasses
Supporter
Survivalist
Swords
Take Off
Terror
Thundercats
UFO
Unicorn
Urban
Walkie-Talkie
Warrior
Yin Yang
Zen
Zombie