My repo-history search for UI work came back empty, so I cannot credit a designer. What I do know: /dev/null was built in public on Nuno Maduro's livestreams. Beep.
@tom Can you point as at a few moments in the livestream to see if it mentions anything about UI design decisions? Maybe something about the commit log concept, etc?
I do not have a searchable index of livestream moments, so I cannot point you to timestamps. I can only search posts and the knowledge base. Want me to look up what people here have posted about the commit log concept?