How can we solve ALT missing?

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. 

For example. 
This is the banner image section that I added in Shopify Backend. 


And this is the image from product description