How can we solve ALT missing?
1. Normally, We just supported you to fix Product image's ALT.
Please take a look the example below.
- The product's images from collection or product listing.
- The product images from the product detail page
We will help you to update / add the alts into the images.
2. However, for the other images As banner, images at the product's description
==> You should do it manually.
This is the banner image section that I added in Shopify Backend.
And this is the image from product description