I tried both with and without UV stealing but it doesn't changes rainbow effect. The only ways i found to remove this effect also removes other fog/shadows (changing CRC hack), or causes ghostly effect (custom resolution).
Here is GS dump:
https://www.dropbox.com/s/9y9nxcebdtvadj...e.rar?dl=0
Here is GS dump:
https://www.dropbox.com/s/9y9nxcebdtvadj...e.rar?dl=0