# Chemical equation in the website header?

How was the chemical equation created that can be seen in the website header (picture) next to the big {TeX}-sign (left) and below the sindarin(?) part?

I assume this was done using TeX somehow (wild guess :D), but I would really like to know whether it was done manually (if this is even possible) or which macro package was used, as it looks really neat.

-
Because this question is about (La)TeX and not the TeX.SX site itself, even if it is referenced, it belongs on the main site. I will migrate it there. Then the issue with the forced tag disappears as well. –  Martin Scharrer Jun 29 '11 at 13:25
This has been more or less answered (indirectly) here –  Seamus Jun 29 '11 at 13:30
@Martin: Oh, ok. I thought it belongs into the meta section, sorry. –  Lustique Jun 29 '11 at 13:36
@Seamus: Thanks, I should have searched a little harder I guess. –  Lustique Jun 29 '11 at 13:38
No problem. This case is a little confusing. :-) –  Martin Scharrer Jun 29 '11 at 13:38