Found out that overriding some of the wp.media.editor objects methods is the best solution, because it allows you to customize the event handling, but will also preserve a lot of the backend processing and handling that WP has in place for processing images. I basically overrode wp.media.editor.send.attachment, wp.media.gallery.shortcode with my own methods, and wp.media.editor.remove, in order to send the data these methods produce to PHP via an ajax call and process them as I see fit. Thanks to this guy’s guidance. Awesome! https://japaalekhin.llemos.com/how-to-use-wp3-5-media-manager-in-your-plugin-or-theme
