This is clearly just a recreation of my program: https://github.com/ThatOneCalculator/Among-Us-Dumpy-Gif-Maker

While that's fine on its own, you gave ABSOLUTELY NO CREDIT. Given your program does exactly the same thing as mine, going as far as to use the same assets, credit would be appreciated.

If the input image is scaled down so each pixel corresponds to a crewmate before the loop, the colors of each crewmate are way more accurate.

Compare (width is 30):

Original:

Before patch:

You can see how it picks up the noise in the image and uses the colors poorly

After patch:

The patch can be viewed here: https://github.com/makeworld-the-better-one/img_sussifier/commit/5eb29c4235238f59fa2e19b5ec4216a37cc7368f

My fork targets Linux and has likely diverged too much to make a PR useful, but you can just change that bit of code to gain this feature.

no shell = True -> I got the error [Errno 2] No such file or directory: 'ffmpeg -f image2 -i sussified_%d.png -filter_complex "[0:v] scale=sws_dither=none:,split [a][b];[a] palettegen=max_colors=255:stats_mode=single [p];[b][p] paletteuse=dither=none" -r 20 -y -hide_banner -loglevel error sussified.gif'

with shell = True works just fine! https://stackoverflow.com/questions/23258660/subprocess-call-fails-on-mac-and-linux

Here is the command for video output if you want, I used this in my fork.

ffmpeg -f image2 -i sussified_%d.png -r 20 -movflags faststart -pix_fmt yuv420p -vf "scale=iw*min(1920/iw\,1080/ih):ih*min(1920/iw\,1080/ih)" -y -hide_banner -loglevel error sussified.mp4

This command is somewhat opinionated, in that it limits video dimensions to 1080p. Otherwise it's very easy to generate gigantic videos and slow down your computer when ffmpeg runs.