Update parallel_animation_logo.dart

Author: 2534290808

example/lib/parallel_animation_logo.dart

@@ -4,7 +4,7 @@ class AnimatedLogo1 extends AnimatedWidget {
   // The Tweens are static because they don't change.
   static final _opacityTween = new Tween<double>(begin: 0.1, end: 1.0);
   static final _sizeTween = new InterpolationTween(inputRange: [0,0.2,1], outputRange: [0,250,300]);
-  static final _colorTween = ColorInterpolation(inputRange: [0,0.2,1],outputRange: [Colors.white,Colors.green,Colors.red]);
+  static final _colorTween = ColorInterpolationTween(inputRange: [0,0.2,1],outputRange: [Colors.white,Colors.green,Colors.red]);
 
   AnimatedLogo1({Key key, Animation<double> animation})
       : super(key: key, listenable: animation);