I made this texture that replaces the PlayStation icons with Xbox icons, as well as the shoulder button icons (which turned out a bit ugly, I plan to improve them later).
I was surprised that the original icons were already wrong, and they’re too big for the coordinates that the game looks for in the texture, so these buttons are a little smaller than the originals, and more centered too. Instead of being 20×20 pixels, they’re 18×18, with the exception of the shoulder buttons, which maintain the 20 horizontal pixel aspect and are better located.
Here it is for anyone who wants to use it.
I made them in the SLUS-21216 version of the game, the American version, but I think that if you change the file name to the name corresponding to the same texture in the European version, or in the Arcade Edition, it should work the same.