Hexasoft

Hello, sorry if it's not the right place. I'm working on a small own tool related to guitar and I want to "pretty display" possible tabs for common chords. As I know that tuxguitar still has this in it, and rather than reinventing the wheel, I'm searching in tuxguitar code where are stored the possible guitar tabs for a given chord. Can you guide me about that? I grep'ed the code for "chord" but failed to find what I'm looking for. Regards, Hexasoft