other than the chat window I don't think you can change the size of the windows and bars, what you might be seeing is screenshots with a higher resolution than what your used to, so these things look like they've had that sizes changed.
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IGN: Angel Eyes
Build: Pure Bard
Guild: Freelance

Grace wrote:
First make yourself smile, then work on the rest of the world.
STATUS: Currently trying to figure out how to make myself smile.