Does that little green strawberry stem count as an "l"? I guess it doesn't matter. Valentine's Day is not the day to pick nits. Besides, I do like the chocolatey second "g."
The idea for changing the logo in honor of special events came in 1999, after founders Larry Page and Sergey Brin attended the Burning Man Festival (see that logo here). In 2000, intern Dennis Hwang was asked to come up with a Fourth of July logo. He's been at it ever since. CNN said Hwang may be "The most famous unknown artist in the world."