GMail has a news look and is quite refined, great job. They have a new feature they are touting called Display Density, trouble is - I could not find it.
The help says the Gear Option Icon should be to the top right of email list when you are on the Inbox link? Well where is it? Its not there. It makes sense when your look at a list of emails you should be able to format the list at this point ?
Turns out, it's only when you COMPOSE a new message that you see the Gear Option Icon and then can change the Display Density. Just a helpful hint and design quark. See image below.