anchor.diff:          nameSpan = JsonMLElement('span')
             ..createTextChild(
                 child.displayName.isNotEmpty ? '${child.displayName}: ' : '')
  -          ..setStyle('color: rgb(136, 19, 145); margin-right: -13px');
  +          ..setStyle(
  +              'background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px');
           valueStyle = 'margin-left: 13px';
         }
   
  
positive.code:           'margin-bottom: 0px;'
            'margin-left: 12px;');
      if (object is StackTrace) {
        body.addStyle('color: rgb(196, 26, 22);');
      }
      var children = _simpleFormatter.children(object, config);
      if (children == null) return body.toJsonML();
  
negative.code:     // This is stylistically a bit ugly but it eases distinguishing Dart and
      // JS objects.
      var element = JsonMLElement('span')
        ..setStyle('background-color: #d9edf7;color: black')
        ..createTextChild(c);
      return element.toJsonML();
    }
  