The purpose of this patch is to remove any flashes from the game that could possibly trigger seizures due to photosensitive epilepsy.
So far there are three major event-related flash instances that this patch will remove, but in the future I hope to remove any more from spells and other events or what have you, but for now it at least takes care of the major ones.
If you are epileptic and notice an instance of flashes that is potentially dangerous, please reach out to me and we can update this patch further.