anchor.diff:        .image-set__title[data-images-equal="false"] {
           color: red;
         }
  +      .image-set__title[data-images-equal="updating"] {
  +        color: black;
  +      }
         .image-set__title[data-images-equal="true"] {
           color: green;
         }
  
positive.code:             // TODO: Expose error to user so they can retry
              console.error('Error encountered "' + errorThrown + '" when updating image "' + imgSetId + '"');
  
              // TODO: Reset status to previous state
            });
  
            // When loading completes, remove loading state and update image references
  
negative.code:     //- [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)
      //- [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
  