Hello Splitjar,

This is already available. 

When a checkers game is finished, a PGN button on the right side of the window LIGHTS UP. If you click on it, you can save a *pgn file with the moves made in the last game. 

There are many applications available on the Internet which open PNG files. Please google for "pgn app", if you like.

Sincerely,
John

Good afternoon Splitjar,
You can for example in the game of "checkers and chess" save all the moves of the game, save the file "PGN" and then visualize it with a text editor or a "PGN" editor, for more information see:

https://www.flyordie.com/chess/faq.html#topic=rating

Regards
Dav7d