[Captain Kwok]

A list of working/not-working options for SE:IV's RacialTraits.txt:

Work

Reproduction
Mineral Production
Organics Production
Radioactives Production
Research Production
Intelligence Production
SY Rate
Maintenance Cost
Supply Cost
No Plagues
Luck
No Spaceports
Population Happiness
Vehicle Speed
Galaxy Seen
Planet Storage Space
Planetary SY Rate
Mineral Storage
Organics Storage
Radioactives Storage
Production
Trade
Space Combat
Ground Combat
Repair
Tech Area
Tollerance* (Note the spelling error here, but that's how it is)
Ship Attack
Ship Defense
Population Emotionless

Do Not Work:

Troops Bonus
Fighter Bonus
Ship Bonus