We have not found out how to export raw graphics from TIL-files. TIL-files have a team logos which will be layered on top of the rink in the original game. That is how in original game each team have their own rink. MAP-files are holding the information where and how to place those logos, it can be done by placing the logos on different places on ice and/or multiple spots. We have not found out how that works exactly either.
What goodbyeccha did on his mod, was that he emptied the MAP-file, so logos would not be placed over the rink image. Then he just painted new rink to RINK.QFS file for each team to separate files. All those images are placed in RINK folder and selected there manually for each team.
So, just have to replace that RINK.QFS each time you start a new game.