anchor.diff:      //- [x] TODO: Next: Add image acceptance support for matched images
       //- [x] TODO: Next: Filter out unselected matched images
       //- [x] TODO: Next: Move to button triggered image matching (i.e. clicking button uses preloaded overlay data but will generate results)
  -    //- [ ] TODO: Next: Add click/drag overlay support
  -    //-    [x] Mostly done, want to fix up expands to only expand bad images
  -    //-    [ ] Then highlight new overlay area better in "Similar images"
  -    //-    [ ] Then remove "Similar images" when we update it
  +    //- [x] TODO: Next: Add click/drag overlay support
       //- [ ] TODO: Next: Add result update (i.e. pass/fail) if we still lack it
   
       //- Setup our overlay definition
  
positive.code:           var $refImg = $imgSet.find('[data-compare-type="ref"]');
            $diffImg.addClass('loading');
            $refImg.addClass('loading');
  
            // TODO: Eagerly update our status
            //   This won't be the scenario for update reference image (i.e. we are progressively updating images)
  
            // Make an AJAX call to accept our image
            // http://api.jquery.com/jQuery.ajax/#jqXHR
  
negative.code:             // TODO: Expose error to user so they can retry
              console.error('Error encountered "' + errorThrown + '" when updating image "' + imgSetId + '"');
  
              // Reset status to previous state
              // TODO: Test resetting to previous state on failure
              $imagesEqual.attr('data-images-equal', oldStatus);
            });
  
            // When loading completes, remove loading state and update image references
  