Is it possible to have an image show up based on a meta value? For example, if I have the meta_key image_test, and it stores "toolbox.gif" for a post, can I show that image in the admin?
I started with something like this but am not sure how to make it dynamic. I'm guessing it part of the name or desc since those take HTML but I'm fine with it as whatever, so long as it can show the image in the post editor.
The image field value doesn't show in the field name like that. If you want to display it in the Gutenberg editor in the admin area, you can use a custom block. Please follow the documentation https://docs.metabox.io/extensions/mb-blocks/