Filename of Basketball Background on Main Menu

Hello, I'm trying to do a minor tweak to my PS2 version of NBA Live 09. I'd like to swap out its yellow menu background image with the brownish basketball one from 08. I assume it's a single file that's used across the menu screens as opposed to a series of fullscreen images. Does anyone know what it's called? While I don't think I'll be able to rebuild the PS2 iso and have it work, I'd like to try it anyway. Thanks.