White Flash like in Skibi's Tower defense

[bugbear]

I am trying to figure out how to make a white flash appear over the players' screen. I saw this used in Skibi's Tower defense when it switches to a minigame, but scouring the code for skibi's map I am unable to find where the flash takes place to replicate the code (or even figure out what function does this). Anyone have a clue?

 

[Romek]

Would this be what you're looking for?
There would be no need to import in your case, just use the default white filter.

 

[bugbear]

Perfect, thank you Romek.