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:     _chartController.setViewPortOffsets(50, 10, 10, 30);
    }
  
    void frameSelected(int frameIndex) {
      _controller.frameBasedTimeline.selectFrame(frames[frameIndex]);
    }
  
    /// Light Blue 50 - 200
    static const mainUiColorLight = Color.fromARGB(0xff, 0x81, 0xD4, 0xFA);
  
    /// Light Blue 50 - 700
    static const mainGpuColorLight = Color.fromARGB(0xFF, 0x02, 0x88, 0xD1);
  
    void _initData([bool simulateFeed = false]) {
      // Create place holder for empty chart.
  
negative.code:       drawBarShadow: false,
        description: desc,
        highLightPerTapEnabled: true,
        marker: SelectedDataPoint(onSelected: onBarSelected),
        selectionListener: this,
      );
  
  