Nah, ImperialGirl is a grad student who has had way too much practice overanalyzing things. <g> And for those on the Thrawn yahoogroups list, I'm AdmsLady/TIE Pilot over there. Mostly a lurker here at JC. And yes, Thrawn did (according to TTT) keep the lights in his command room dim. I always wrote that off to something with the art--maybe the holos didn't show up as well in bright light. If his eyes don't have pupils or irises (and I don't think they do--I don't think the cover of VOTF is accurate) then the idea of providing illumination might work. I don't, though, think they're cave-dwellers or anything like that--cave animals tend to be completely blind. (They have some weird cave fish, for example, in Mammoth Cave, Kentucky--no eyes at all.) It might also have something to do with their star again--a protective adaptation of some sort? The perverse part of me wonders if it might be a secondary sexual characteristic, but I doubt it, since they all seem to have more or less the same kind of eyes.