why would my privacy settings mess with this?

cross-posted from: https://lemmy.blahaj.zone/post/32127303

Transcript

this screenshot was taken on Miners Need Cooler Shoes

does anyone know what would cause this precisely? why would anti-fingerprinting mess with the colors i use to edit an image in the browser?

i'd be tempted to brush this off as the website being malicious and lying to get me to deactivate fingerprinting protection, but the website is fully open-source and what they describe happened to me on Piskel (a pixel art editor, which would constantly mess up my colors in subtle but annoying ways)