https://bugs.freedesktop.org/show_bug.cgi?id=92309
--- Comment #15 from acutiator@outlook.com --- Based on what you said, I would think that it should be possible to detect when an invalid pre-multiplied alpha bitmap is in use. Is that true in all circumstances or is there more nuance to that? If it is true, I would think it'd be worth correcting for this error on the library side, though the problem is actually in the games.