Select “Templates” from the left side Menu in Catalog Bar CMS and click on “Mobile Catalog” under “Template Setting”

Now, you are on the “Mobile Catalog” page

When you click on “Logo” field, the “Media Library” page will pop up

Select the image from “Media Library” and click on "Save" button.

You will see the notification “Success Record Saved”

On the mobile catalog, the users can view the brand logo on the top of each screen.