anchor.diff:          'data-avatar-index':avatarIndex,
           'data-colour':colour
         });
  -      const $light = $div.append($img(event));
  +      const $light = $div.append($ragImage(event));
         $lights.append($light);
         $light.click(() => cd.setReviewData(version, id, groupId, avatarName, avatarIndex, index-1, index));
         cd.setupTrafficLightTip($light, version, id, avatarIndex, index-1, index, number);
  
positive.code:     }
    };
  
    const $img = (event) => {
      const colour = event.colour;
      return $('<img>', {
        src: `/traffic-light/image/${colour}.png`,
  
negative.code:               class="traffic-light-diff-tip-traffic-light-image"
                src="/traffic-light/image/${colour}.png">`) +
           td(`<div class='traffic-light-diff-tip-tag ${colour}'>
                ${count}
               </div>`));
    };
  
  