Generated in python. There is segments of 2 pixels each, so mode 3 isn't working correctly. There is like 700 costumes so it takes some time to load, but the project is under 1 MB which is great!
I will upload a js version of the python code soon. Thanks to: @starkodder @T7F4 @griffpatch scratch @nini2009ph and @-Scroenix43- for the logos. Its FPS-independent (using timestamps).