Gmail as beautiful as it is powerful. This is part of a Google-wide effort to bring you an experience that’s more focused, elastic, and effortless across all of our products. The changes are not going to happen all at once. We know that you love and care about Gmail as much as we do, and we’ll be working on these upgrades gradually over the next few months to allow plenty of time to understand and incorporate your feedback into the evolving design.
We’re kicking things off with two new themes for you to try out as a sort of sneak peek at what we’re up to. Starting today, you’ll see the Preview and Preview (Dense) themes in the Themes tab in Gmail Settings.
Why two themes?
Our new interface will eventually expand dynamically to accommodate different screen sizes and user preferences, but until then you can pick the information density that you prefer.
Goto Settings -> Mail Settings
Go to theme Tab and Select last two themes