I'm not sure if I know what you're talking about but if it's about the mobile app version having the big letters beside some of the emails in the inbox, I believe the letter is the first letter of the person's name who sent you the mail. This only appears if the person doesn't have a google profile image/is using a…

yay more blocks *sarcasm*

Kotaku...talking about good web design and user interface?

Stop with the dang tiles! Its alright with touch screens, but I don't want to scroll through a bunch of tiles when I could just panel through the featured games on the front screen!

The letter writer's snack of choice.

Thank your lucky stars he didn't mention the loudest fruit of all: The Banana!