Today i was causally looking through github when this github users winstonrc/README.md had a cool flashing cursor.

LINK: https://github.com/winstonrc

Wow thats cool. how did they do it. Opening file in new tab reviled its. wait what? a png file? this has to be a error. NOPE! turns out a file format called APNG animated PNG, allows for animations by extending a normal PNG file past is normal end byte length. very interesting.

Possible Use cases: Animated Profiles for websites that disallow .GIF's

Enjoy!