anchor.diff:        'katzenmilch',
         'kuroir', 
         'solarized_light',
  -      'tomorrow',
  -      'vibrant_ink',
         'xcode',
     ];
     static final DARK_THEMES = [
  
positive.code:     //_aceEditor.setOption('enableSnippets', true);
  
      ace.require('ace/ext/linking');
      _aceEditor.setOptions({'enableMultiselect' : false,
                             'enableLinking' : true});
  
      _aceEditor.onLinkHover.listen((ace.LinkEvent event) {
        if (!DartEditor.isDartFile(currentFile)) {
  
negative.code:       'tomorrow_night_bright',
        'tomorrow_night_eighties',
        'twilight',
        'vibrant_ink',
    ];
  
    ace.Editor _aceEditor;
  