New to DevTools in Chrome 77:
0:10 - Copy element’s style
0:35 - Visualize layouts shifts
1:15 - Lighthouse 5.1 in the Audits panel
2:02 - OS theme syncing
2:36 - Keyboard shortcut for opening the Breakpoint Editor
3:09 - Prefetch cache in Network panel
3:44 - Private properties when viewing objects
4:07 - Notifications and push messages in the Application panel