[quote=TheUnknowable]
I think it was an old republic thing because in war you need to distinguish your warriors from your diplomats/scientists and your specialists/intelligence. Later all jedi could study whatever they wanted to and it didn't matter, plus only blue and grenn crystals were common anymore.
[/quote]

Nah it was the games way of differentiating them. The Jedi within the order knew who could do what and so far. Also in actual Legends canon (Which is what we're in) a Jedi doesn't really chose a crystal but is typically drawn to it when they go to Illum.

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Addon: Done meeting and gym, gunna throw up CS after cubs cause I'm busy organising shit for them right now.