[MaxOff]

technical: no, its not alowed after all its a modification of the game ressources. Pratictly i doubt they will have any reservations against it, becouse changing the font will most likely not change the game balance.

to the legal stuff: its complety legal to change that file, if they want it or not. But they coud still ban u for the modification.

Or to put in other words: its complety legal to read and modify anything on ure computer, but ure not allowed to steal code, or deactivate any kind of protections, but there also exceptions. And u should inform yourself how the laws are in ure country.