Hundreds of "fills" png

[Fanny128371289431]

When i'm working with my file in AE i noticed a folder linked to the project called "Fills", then within that folder one of my scenes are and within that there's a folder called "000000" and then 600 PNGs which i can't preview. They're taking a lot of space but i don't know if i can delete them without ruining my file?

Anyone has a solution for this? Thanks!

[Mylenium]

Well, what did you actually do? Run a content aware fill? Use some third-party script somewhere? You need to be more specific.

Mylenium