The Coming Soon pane isn't available in Access, Project, Publisher, or Visio. You can also switch off the refresh and go back to the classic experience. You can read more about the visual refresh changes, and switch on Try the new experience to apply the setting to all your Office desktop apps.

In Word, Excel, PowerPoint, or OneNote, just open the Coming Soon pane from the megaphone icon in the upper right. To help with your transition, you can access the new experience in the Coming Soon pane and try it out early.

We know that change can be uncomfortable. We based the Office visual refresh on feedback from users like you who asked for a more natural and consistent experience within and between your Windows Office apps. With this refresh, we've applied Fluent Design principles to deliver an intuitive, coherent, and familiar experience across all your applications: Word, Excel, PowerPoint, OneNote, Outlook, Access, Project, Publisher, and Visio. To align with that release, we've now released an Office visual refresh that shines on Windows 11, but also works on Windows 10. As announced in June 2021, Windows 11 provides a new, fresh experience.

Outlook 2016 dark theme