Feature Request for WP Smush Pro - Optimizing Theme Images

EWWW Image Optimizer has a feature that scans the full WordPress install and finds images that are outside of the Media folder. Typically, these images are theme resources and for the most part never get optimized by the web developer.

Right now I install EWWW to take care of the those, then take that off the site and add WP Smush to do the rest of the work.

Would it be possible to add a feature to optimize all the images on the site like EWWW is doing?