Get rid of a lot of () for getters.

samples/spirodraw/ColorPicker.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 typedef void PickerListener(String selectedColor);
 
 class ColorPicker {
   static const hexValues = const ['00', '33', '66', '99', 'CC', 'FF'];
   static const COLS = 18;
   // Block height, width, padding
   static const BH = 10;
   static const BW = 10;
   static const BP = 1;
   final List<PickerListener> _listeners;
   CanvasElement canvasElement;
   String _selectedColor = 'red';
   final height = 160;
   final width = 180;
   CanvasRenderingContext2D ctx;
   
   ColorPicker(this.canvasElement) :
     _listeners = []
   {
     ctx = canvasElement.context2d;
     drawPalette();
     addHandlers();
     showSelected();
   }
   
-  String get selectedColor() => _selectedColor;
+  String get selectedColor => _selectedColor;
   
   void set selectedColor(String color) {
     _selectedColor = color;
     
     showSelected();
     fireSelected();
   }
   
   void onMouseMove(MouseEvent event) {
     int x = event.offsetX;
@@ skipping 66 matching lines @@
     int i = value.floor().toInt();
     
     int r = (i ~/ 36) % 6;
     int g = (i % 36) ~/ 6;
     int b = i % 6;
     
     return '#${hexValues[r]}${hexValues[g]}${hexValues[b]}';
   }
   
 }