anchor.diff:  
   import '../../flutter/auto_dispose_mixin.dart';
   import '../../flutter/controllers.dart';
  +import '../../ui/colors.dart';
   import '../../ui/fake_flutter/_real_flutter.dart';
   import '../../ui/theme.dart';
   import '../timeline_controller.dart';
  
positive.code:     const paddingAroundText = 5;
      const rectangleCurve = 5.0;
  
      final frameIndex = _entry.x.toInt();
      final yValues = (_entry as BarEntry).yVals;
  
      final num uiDuration = yValues[1];
  
negative.code:     _chartController.setViewPortOffsets(50, 10, 10, 30);
    }
  
    void onBarSelected(int index) {
      _controller.frameBasedTimeline.selectFrame(frames[index]);
    }
  
    void _initData([bool simulateFeed = false]) {
      // Create place holder for empty chart.
  