https://www.theverge.com/2018/7/26/17616112/how-to-chrome-material-design-refresh

Google has been working on a Material Design refresh for Chrome across desktop and mobile in recent months, and elements of the redesign are starting to make their way to the stable version of the browser. Chrome 68, released earlier this week, now includes parts of the Material Design refresh hidden behind settings flags in both the iOS and desktop versions.

While the desktop version includes a more rounded and whiter appearance, the mobile version of Chrome has a far more drastic redesign on iOS. Google is moving the navigation controls to the bottom of the screen, and overhauling the new tab page to be more useful. The navigation changes mean forward and backward buttons are now at the bottom, alongside access to tabs, settings, and a new search button. The new search button is a quick way to get to the address bar for now, which is ideal if you’re using a phone with an extra-tall display.