The shimmer is far stronger in humans, resulting in a gleam that, without protection, will cause eye damage over time; gderans protect themselves with paint, veils, or masks. Gderans don't do well with animal fats, and many are vegetarians.
"Humans often worry they might stand out - more prone to mental breakdowns than others, more war-like, more ignorant; less talented, less supportive, not as sure. The good news to them is, the average-ness of humans is quite often what holds a society together."
— Stone giant
Humans tend to be curious, and are equally fatalistic and optimistic. They have a tendency towards cynism and philosophical short-sightedness, and at the same time suffer from helping syndrome and weltschmerz. They are regarded as one of the most discrepant peoples of Kitas.
I thought about introducing subtypes into other races as well, but the humans are only slightly different in themselves; and when I think about it - the garren, dwarves, and raganaj are very different from one another, so humans have a right to be diverse as well, I guess. I never liked the human-centristic worldview often seen in sci-fi, and sometimes fantasy, and humans are no important race of the Genius Loci setting; neither in numbers nor occupations.