Phu was the winner of the lighttpd logo contest and is therefor the author of the official lighttpd logo.
His great work is under a Creative Commons Attribution-ShareAlike license
It was later "remixed" and simplyfied by Paul from openartist.net (parked domain now).
Show that your site is powered by Lighttpd with these badges and promotional materials.
Badges by Kotaro License: unknown (quote: "Steal and put these buttons as feel free")