How to Add a New Branding Image
From your Home Screen, click the “Setup” button in the top right corner.
From your Profile, switch to Salesforce Classic.
This will show you another view.
Go to the “+” icon at the top of the page.
This will take you to this next screen.
Go to Documents. NOTE: All tabs on this screen are alphabetical for ease of navigation.
This will take you to the Documents page.
All red fields are required.
Name your Document (Image).
Hit tab, and the Document Unique Name will be created automatically.
Click the “Externally Available Image” box.
Folder: Choose “Shared Documents.”
Select the File/Image you wish to Upload.
To see a particular image and get its URL to add to an event, click “View.”
This will open the image in a new tab.
Copy the URL and add it in the Branding Image URL.