Where are built-in event stored?

[THEkatinamicrowave]

I wanted to check if I could add a function to change the icon whenever alt anims get enabled, but I couldn't find the Alt Animation Toggle event code anywhere in the assets or the source code. Where is this? Please help.

Update: I just realized you can use onEvent and check if it's Alt Animation Toggle thing, but I am still curious where the code for the built-in events are

[NexIsDumb]

source/funkin/backend/scripting/events/

[SenDoesStuff]

Event Data is stored in source\funkin\backend\chart\EventsData.hx
The actual Event Code is in PlayState.hx

[NexIsDumb]

Event Data is stored in source\funkin\backend\chart\EventsData.hx The actual Event Code is in PlayState.hx

OH he meant those MY BAD

[THEkatinamicrowave]

tysm