The proposed (and widely used) fediverse logo is now part of the Font Awesome library.
From the archives:
"A lot of people think that the pentacle was chosen because of its occult or satanic connotations. And while it would be in Fediverse's rebellious spirit, this was not the case."
https://stefanbohacek.com/blog/the-history-of-the-fediverse-logo/
