Problem
Attachments seem to not always be visible enough. For instance, a user deleted an image from the editor content but didn't notice that the file was still attached under the editor. He was surprised that the customer had access to the image. I'm not sure that we can detect that a file is removed from the editor, but we can at least make the attachment more visible.
Also, attachments should display the file size.
Solution
I made a very quick and dirty mockup of what I have in mind. It may require a bit of polishing.

Problem
Attachments seem to not always be visible enough. For instance, a user deleted an image from the editor content but didn't notice that the file was still attached under the editor. He was surprised that the customer had access to the image. I'm not sure that we can detect that a file is removed from the editor, but we can at least make the attachment more visible.
Also, attachments should display the file size.
Solution
I made a very quick and dirty mockup of what I have in mind. It may require a bit of polishing.