Add Site Logo to a new Google Site

1. Use the Settings (looks like a cog/gear) near the Publish button.
2. Choose the Brand images option.
3. Choose to Upload your logo or Select from Google Drive, Google Photos, search results or from a URL.
4. Your logo appears at the top of the page header.
5. Close the Settings dialogue box.
6. Use the Publish button to make the logo live on the site.

Add Alt text to Logo - new Google Sites

1. Use the Settings (looks like a cog/gear) near the Publish button
2. Choose the Brand images option
3. Enter the text in the Alt text box
4. Close the Settings dialogue box.
5. Use the Publish button to make the changes live.