anchor.diff:                ),
                 new RenderTable(
                   border: new TableBorder.symmetric(inside: new BorderSide(width: 1.0)),
  -                columnWidths: const <int, ColumnWidth>{
  +                columnWidths: const <int, TableColumnWidth>{
                     0: const IntrinsicColumnWidth(),
                     1: const MaxColumnWidth(const IntrinsicColumnWidth(), const FractionColumnWidth(0.4)),
                     2: const FlexColumnWidth(),
  
positive.code: import 'dart:async';
  import 'dart:collection';
  import 'dart:math' as math;
  import 'dart:ui' as ui;
  
  import 'package:flutter/services.dart';
  
negative.code:                         child: train.imageRenderer = new RenderImage(
                            fit: ImageFit.fitWidth
                          )
                        )..parentData = (new TableCellParentData()..verticalAlignment = TableCellVerticalAlignment.fill),
                        new RenderPointerListener(
                          onPointerDown: (PointerDownEvent event) => handlePointerDown(train),
                          child: new RenderPadding(
  