Microsoft is rolling out a new Viva Engage Brand Center. The new brand center lets administrators with the Yammer Administrator role define a customized, tenant-wide visual identity across the Engage web and mobile apps. It should help organizations to reinforce their identity throughout the Engage experience.
Yammer administrators now find the new option, Brand Center, in the Engage admin center.

Administrators can configure a brand/organization name, add large (114×114 px) and small (32×32 px) logos, and set a theme color that applies consistently across the Engage service. The Brand Center offers a preview mode before an administrator publishes the updated design to all users.
The logo in the top bar is the small logo. At 32×32, it’s pretty small. I think the small size is optimized for the Engage mobile app, not for the web experience.

The large logo is visible on the Engage start page.

Two notes:
- Brand updates appear quickly on the web but take up to 60 minutes to appear in the Engage mobile app.
- The Engage app in Teams does not fully support the new branding updates.
