Update charted to 0.4.8 and roll

packages/charted/lib/charts/themes/quantum_theme.dart

 /*
  * Copyright 2014 Google Inc. All rights reserved.
  *
  * Use of this source code is governed by a BSD-style
  * license that can be found in the LICENSE file or at
  * https://developers.google.com/open-source/licenses/bsd
  */
 
 part of charted.charts;
 
@@ skipping 19 matching lines @@
     const ['#C5D9FB', '#4184F3', '#2955C5'],
     const ['#F3C6C2', '#DB4437', '#A52714'],
     const ['#FBE7B1', '#F4B400', '#EF9200'],
     const ['#B6E0CC', '#0F9D58', '#0A7F42'],
     const ['#E0BDE6', '#AA46BB', '#691A99'],
     const ['#B1EAF1', '#00ABC0', '#00828E'],
     const ['#FFCBBB', '#FF6F42', '#E54918'],
     const ['#EFF3C2', '#9D9C23', '#817616']
   ];
 
+  static final _MEASURE_AXIS_THEME =
+      new QuantumChartAxisTheme(ChartAxisTheme.FILL_RENDER_AREA, 5);
+  static final _ORDINAL_DIMENSION_AXIS_THEME =
+  new QuantumChartAxisTheme(0, 10);
+  static final _DEFAULT_DIMENSION_AXIS_THEME =
+  new QuantumChartAxisTheme(4, 10);
+
   final OrdinalScale _scale = new OrdinalScale()..range = COLORS;
 
   @override
   String getColorForKey(key, [int state = 0]) {
     var result = _scale.scale(key);
     return result is Iterable ? colorForState(result, state) : result;
   }
 
   colorForState(Iterable colors, int state) {
     // Inactive color when another key is active or selected.
@@ skipping 17 matching lines @@
       state & ChartState.VAL_HOVERED != 0 ||
       state & ChartState.COL_SELECTED != 0 ||
       state & ChartState.VAL_HIGHLIGHTED != 0 ? 'url(#drop-shadow)' : '';
 
   @override
   String getOtherColor([int state = 0]) => OTHER_COLORS is Iterable
       ? colorForState(OTHER_COLORS, state)
       : OTHER_COLORS;
 
   @override
-  ChartAxisTheme getMeasureAxisTheme([Scale _]) =>
-      const QuantumChartAxisTheme(ChartAxisTheme.FILL_RENDER_AREA, 5);
+  ChartAxisTheme getMeasureAxisTheme([Scale _]) => _MEASURE_AXIS_THEME;
 
   @override
   ChartAxisTheme getDimensionAxisTheme([Scale scale]) =>
       scale == null || scale is OrdinalScale
-          ? const QuantumChartAxisTheme(0, 10)
-          : const QuantumChartAxisTheme(4, 10);
+          ? _ORDINAL_DIMENSION_AXIS_THEME
+          : _DEFAULT_DIMENSION_AXIS_THEME;
 
   @override
   AbsoluteRect get padding => const AbsoluteRect(10, 40, 0, 0);
 
   @override
   String get filters => '''
     <filter id="drop-shadow" height="300%" width="300%" y="-100%" x="-100%">
       <feGaussianBlur stdDeviation="2" in="SourceAlpha"></feGaussianBlur>
       <feOffset dy="1" dx="0"></feOffset>
       <feComponentTransfer>
         <feFuncA slope="0.4" type="linear"></feFuncA>
       </feComponentTransfer>
       <feMerge>
         <feMergeNode></feMergeNode>
         <feMergeNode in="SourceGraphic"></feMergeNode>
       </feMerge>
     </filter>
 ''';
 
   @override
   String get defaultFont => '14px Roboto';
 }
 
 class QuantumChartAxisTheme implements ChartAxisTheme {
   @override
-  final axisOuterPadding = 0.1;
+  final double axisOuterPadding;
 
   @override
-  final axisBandInnerPadding = 0.35;
+  final double axisBandInnerPadding;
 
   @override
-  final axisBandOuterPadding = 0.175;
+  final double axisBandOuterPadding;
 
   @override
-  final axisTickPadding = 6;
+  final int axisTickPadding;
 
   @override
-  final axisTickSize;
+  final int axisTickSize;
 
   @override
-  final axisTickCount;
+  final int axisTickCount;
 
   @override
-  final verticalAxisAutoResize = true;
+  final bool verticalAxisAutoResize;
 
   @override
-  final verticalAxisWidth = 75;
+  final int verticalAxisWidth;
 
   @override
-  final horizontalAxisAutoResize = false;
+  final bool horizontalAxisAutoResize;
 
   @override
-  final horizontalAxisHeight = 50;
+  final int horizontalAxisHeight;
 
   @override
-  final ticksFont = '12px Roboto';
+  final String ticksFont;
 
-  const QuantumChartAxisTheme(this.axisTickSize, this.axisTickCount);
+  QuantumChartAxisTheme(this.axisTickSize, this.axisTickCount,
+      {this.axisOuterPadding: 12.0,
+      this.axisBandInnerPadding: 0.35,
+      this.axisBandOuterPadding: 12.0,
+      this.axisTickPadding: 6,
+      this.verticalAxisAutoResize: true,
+      this.verticalAxisWidth: 75,
+      this.horizontalAxisAutoResize: false,
+      this.horizontalAxisHeight: 50,
+      this.ticksFont: '12px Roboto'});
 }