Feature Request: Add support for featured images

I've been using Recent Global Posts plugin for years in various ways, and it is great and flexible. On thing that would be really nice if a new optional attribute could be added to display the featured image along with the other information about the post.

I know this depends on Post Indexer, and I don't even know if Post Indexer includes the featured image in its index, but that piece of additional information would really add some more flexibility to this tool.

Any chance one of your devs could take a swing at this?