Ada compliance, alt text and "sawdust" theme adobe portfolio

This might be specific to "sawdust" theme in adobe portfolio. It's very intuitive to add alt text to images within the pages of a "sawdust" themed porfolio website.  However, it appears you can't add alt text for images on the "cover" or home page images. After some ADA compliance testing on another sawdust themed website, I saw the same issue. Looking for workarounds or solutions.