YouTube is revamping its desktop site with material design, with the aim of offering a more consistent experience across the web and Android/iOS apps. The revamped site also brings new features like dark mode, tweaks to search and channel pages, as well as updated theatre mode. YouTube says the new Material Design is meant "to deliver a beautiful, delightful and intuitive user experience."
Users can opt-in to preview the new design by clicking on youtube.com/new. There is even an option to restore the classic YouTube from the Account menu.