That's right: Vaughan Pratt designed the original square Sun logo.

https://en.wikipedia.org/wiki/Vaughan_Pratt

And Sun Science Officer and Nixon Enemy John Gage is the genius who rotated it 45 degrees.

https://en.wikipedia.org/wiki/John_Gage

Nixon Enemies List entry for John B. Gage:

https://www.enemieslist.info/enemy.php?ID=463

Another one of the greatest logos of all time is the SGI logo, designed by none other than Scott Kim!

https://en.wikipedia.org/wiki/Scott_Kim

http://xahlee.info/UnixResource_dir/sgi_logo.html

https://www.amazon.com/Inversions-Scott-Kim/dp/1559532807

https://scottkim.com/