I was looking for a tutorial on adding options to the "Edit Gallery" page. In the hopes of adding some GUI inputs that would result in the generated [gallery] short-code having custom attributes.
I found this question. I was hoping that taking a look at how the page and options are rendered, and were the request "insert gallery" is sent would help me understand the issue.
So again the questions are :
1) Where in the WordPress core can I see how the "Edit Gallery" page and its settings are rendered?
2) What file / function handles the "insert gallery" request ?
I created a separate questions so someone could get some easy points : )