anchor.diff:    if (color) {
       redPen = new AnsiPen()..red(bold: true);
       greenPen = new AnsiPen()..green(bold: true);
  +    orangePen = new AnsiPen()..rgb(r: 1,g: 0.45,b: 0);
       underlinePen = (String s) => "\x1B[4m$s\x1B[0m";
     }
   
  
positive.code: 
        // Error if no tests were found.
        if (tests == null || tests.length == 0) {
          print('\x1b[4A');
          stderr.writeln(redPen("No tests files were found.\n"));
          exit(3);
        }
  
        displayTestCount(tests, true, skipBrowserTests);
  
        // Step 3 bis: Check if browser binaries have been set correctly.
  
  
negative.code: 
  /// Green colored modifiers for writing to terminal in color mode.
  var greenPen = (String s) => s;
  
  /// Orange colored modifiers for writing to terminal in color mode.
  var orangePen = (String s) => s;
  
  /// Un-colored underlined modifiers for writing to terminal.
  var underlinePen = (String s) => s;
  