Hate to break it to you but those are recolored sprites that are used for the 8-way movement system of the RPG Maker series (looks like Mack-style to be precise) Yes they are a "rip" from Tactics, but that's not "Tactics" so try not to sell it that way, k, thanks.

Dragoon as my favorite job of all time, has always been: Purple-black (the hue might change depending on the game, but its always that purple/black scheme; never seen a legitimate green one >.>)

Monks were traditionally light blue and became Orange/red later in the series (again not crazy amounts of different colors)
Ninjas are traditionally deep red or black (or a mix of both) through out the series (again not a crazy amount of different colors)

Just Google image search "Final Fantasy JOB_NAME" (make sure to use the parenthesis to make sure its only FF jobs and not different games, like if you did Final Fantasy Dragoon, you get results for Legend of Dragoon as well, which is totally different, lol)