PNG file for keyframe?

Hi all,

Sort of an odd question - is there a specific directory I can go to to find where the file for a keyframe in AE? Like the little rhombus thing that symbolizes a keyframe. It had to have been connected to some sort of file (image/shape).

I like the look of the old keyframes in CC 2014 (Where it has an outline. Don't ask why I like it, I don't know.) and I want to be able to transfer that look to CC 2022. And I would think it's somewhere in the software's files (in Program Files or somewhere else)

I know next to nothing about coding and this type of stuff, so if you could help me out, that would be great!

I'm using Windows 11 Home.

Thanks!