SharePoint JSON List Formatting - Image Preview Full Solution

Hello teacher, I would like to ask how to update the contents of the attachments column in SharePoint (there are multiple contents in the attachment) to json format for storage?

Really appreciated Steve, but thing is first you deleted the column, which means when you delete the column column data also deleted, after you created a single line text field and update column format to field, how did you get the images back? how did you get back the field data in images?

Thanks, thats awesome!

I don't suppose you've found any way to "select" items in a gallery view other than using that tiny little dot in the top right corner, have you? The use case is I have a list of "suppliers" which has a "category" column that's a lookup to another list. I want to put them both on a page so that selecting the category filters the list of suppliers. It works great, except that selecting that little dot is not intuitive. I'd rather make the entire item a button to select it, or add a button labeled "select this category".