anchor.diff:          var expectedImgSetEl = document.querySelector('[data-image-set]');
           var expectedDiffImg = expectedImgSetEl.querySelector('[data-compare-type=diff]');
           var resultsEl = D.DIV([
  -          D.H4('Similar images:')
  +          D.H4('Similar images:'),
  +          D.DIV([
  +            D.BUTTON({
  +              class: 'btn btn-default',
  +              'data-action': 'update-similar-images'
  +            }, '✓ Update selected images'),
  +          ])
           ]);
           // TODO: Delete results element upon resolution
           expectedImgSetEl.appendChild(resultsEl);
  
positive.code:     //- TODO: Figure out how to make selection work, maybe normal GUI like Gemini but with jawbone effect for matching items
  
      //- [x] TODO: Next: Add image acceptance support
      //- [ ] TODO: Next: Add automatic image matching
      //- [ ] TODO: Next: Add image acceptance support for matched images
      //- [ ] TODO: Next: Move to button triggered image matching
      //- [ ] TODO: Next: Add click/drag overlay support
      //- [ ] TODO: Next: Add result update (i.e. pass/fail) if we still lack it
  
negative.code:               ])
              ]);
              resultsDocFrag.appendChild(resultGroupEl);
            });
  
            // Append aggregate content to DOM
  