How to fix SEO image size error in Dawn theme?

Topic summary

A user is experiencing an SEO image size error flagged by TinyIMG on their Dawn theme store. The issue involves a product collage with “Show second image on hover” enabled.

The Problem:

  • TinyIMG reports one image is larger than necessary (28.29 KB vs. potential 18.96 KB savings)
  • The original image is 1635 x 2048 pixels (not square)
  • Rendered size shows as 163 x 163 pixels
  • The error relates to the second (hover) image within a srcset tag

Key Confusion:

  • Conflicting statistics from the audit tool
  • Unclear where to start fixing the issue
  • The user has spent considerable time troubleshooting without progress

The user is seeking guidance on how to resolve this image optimization error and properly size the hover images in their product collage.

Summarized with AI on November 25. AI used: claude-sonnet-4-5-20250929.

Hi All,

Using the Dawn theme and I’m using TinyIMG to help me get my SEO sorted. On my main page I have a collage which has three products in it. I have selected “Show second image on hover” for each product.

When I look at the audit reports from TinyIMG there is an error. The text of the error is below:

You have 1 images that are larger than needed to be displayed resulting in 9.33 Kb of potential savings. Serving images that are appropriately-sized will save cellular data and improve load times. You have 1 images that are larger than needed to be displayed!

When I look through the page with “Inspect”, the only place that line occurs is within a srcset tag related to the 2nd image image hover. In this case, it’s in the srcset for the second image. I have absolutely no idea where to start in terms of fixing this issue. I have attached a screenshot of the characteristics of the second image as displayed by “inspect” which makes no sense either. The original image is not square and is 1365 x 2048. The screenshot below reports the rendered size as 361 x 361 and then has other stats don’t make any sense. I’ve spent a long time trying to figure out what is going on here but I’m no closer to an answer than I was 2 days ago.

Can anyone point me in the right direction?