Computerworld - https://www.computerworld.com/article/3269115/web-browsers/chromes-canary-reveals-ui-refresh.html#tk.rss_all
Google has introduced the first changes to Chrome’s UI (user interface) in two years, focusing on the shape of the browser’s tabs and other top-of-window elements.
Available in “Canary,” the rawest version of the browser, and so far only for Windows, the tweaked UI is hidden behind an experimental setting. To see the UI, users must type chrome://flags in the address bar, then search for UI Layout in the resulting page of optional settings. Once UI Layout has been located, change the setting from “Default” to “Refreshed” and restart the browser.
[ Further reading: Google’s Chromium browser explained ]
The most noticeable change