The Gmail Logo Was Designed the Night Before Gmail Launched
Ever leave an assignment until the night before it was due? You're in good company. According to a post on Quora from former Google designer Kevin Fox, Googler Dennis Hwang was up late the night before Gmail launched, working on the email service's logo.
Fox recalls:
The logo was designed literally the night before the product launched. We were up very late and Sergey and I went down to his cube to watch him make it.

I had never noticed before how the G of Gmail was such a different style than the rest of the logo, but now that I've focused on it, that G is always going to stick out, the serif-laden man among his serif-less friends.