There are 1 repository under blish-hud topic.
A collection of xTeh.7146's marker packs.
A collection of TacO Markers and Trails by Lady Elyssa suitable for use with GW2 TacO and Blish HUD.
Possibly the most comprehensive collection of marked fishing holes across all of Tyria. And that's it. Just fishing goodness!
A random assortment of markers compiled on the whim of Metallis.6105 or requested in the Blish HUD pack request discussions.
A TacO/Blish HUD marker pack template that features auto building and releasing, changelog generation and a locally install script.