Blogger have passed many interface design. And the latest design, simple, shiny, clean look. New interface offers a streamlined blogging experience. You also can monitor and grow your audience at a glance. You'll be able view your blog stats including popular post, traffic sources, etc.
Login to your Blogger dashboard and find new interface option. Click on the link to activate it. Blogger will gradually let all bloggers choose to turn on the new UI, so your Blogger experience won’t be updated until you enable it. Over the next few days, keep an eye out for a pop-up announcement on your dashboard with instructions on how to get started, and check out this Blogger Help Center page to learn more about what’s changed.