Media Grid started as a standalone plugin by Shaun Andrews, which was a reimagining of the UI User interface as an alternative to the traditional post list view in the Media Library. The argument was that images are the ubiquitous media type in most users’ libraries, so we should provide an interface to browse media visually.
I joined the project in late April, attempting to integrate existing Media modal code. This work was merged into the standalone plugin A plugin is a piece of software containing a group of functions that can be added to a WordPress website. They can extend functionality or add new features to your WordPress websites. WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. These can be free in the WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party, and into trunk A directory in Subversion containing the latest development code in preparation for the next major release cycle. If you are running "trunk", then you are on the latest revision.(see #24716) in early June. In the process, I created documentation for the Media code, which is the most comprehensive resource for untangling the Backbone wires in media.
Questions were raised about what problem the grid was solving, so in order to get a more hands-on understanding of user engagement with the Media Library, Jerry Bates performed user interviews. These confirmed our assumption that images are the pervasive media type, but also surfaced the fact that users identify media in different ways – some by the thumbnail, some by what post a media item is uploaded to, some by title.