Thanks to spinout's converter, I made several rooms for the Light Temple.
I'm still learning this, and I'm afraid to mess with the rooms in a hex editor because I don't know the addresses of everything, and I'm not very good at looking at a debugger and trying to decipher what is happening. So all of this is basic, no actors or doors (although there is spaces where the doors should go).
Images of the rooms:
I think that it doesn't look very good with those textures...
The Triforce!
UPDATE: New images
A room off to the side, possible thanks to a doorway I added to the first room. I want to put a chest in the upper part.
UPDATE 2: Another image