You can add your practice's logo to the sign-in and header of Senta (to replace the default Senta logo). This will be visible for all of your practice users, as well as any clients who log in to use their portal.
Go to Settings > Practice Details > Branding
Here you can upload your logo for either the Sign-in page, the Header, or both.
The dimensions of your logo should not exceed 400 pixels x 100 pixels or you may encounter an error getting it to display.