floor line colors file

Does anyone know where in arena_0XX_int_floor.iff is the archive that determinates de color of the court lines? (out of bounds, 3pt line...) and how can i change it

The colors of the court lines in arena_0XX_int_floor.iff are usually controlled by the texture or material files inside the IFF archive, not the IFF itself. You’ll want to extract the textures using an IFF editor, edit the lines in a program like Photoshop or GIMP, and then repackage it back into the IFF. Make sure to keep the same resolution and format so the game can read it properly.

Nice to see a new poster but that doesn't actually fix the issue. The game overlays colours over the floor lines that isn't determined by the texture.