The supplement I'm looking for might be from Purple Duck. I am looking for a booklet that takes the rogue, and stuffs the Ki powers and abilities of the ninja, and the things from Vigilante, into Rogue. Is there such a thing?
Not that I'm aware of.
Close though is the Genius Guide to the Talented Rogue, which gives a rogue access to abilities of many of their archetypes as well as the ninja. No vigilante stuff though. I would suspect that's what you're thinking of.
There is an official advanced talent, Stalker, that allows a rogue to take a vigilante talent as if they were a 10th level stalker vigilante, treating their sneak attack as if it were a hidden strike, though.
I feel the need to point out that rogues have official talents to gain a ki pool and gain ninja tricks though.