v0.3.0

⚠ BREAKING CHANGES

• change SDK constraint to >=2.12.0-0 <3.0.0 to enable null-safety
• navigation: replace BuildContext.modalRoute with BuildContext.getModalRoute<T>() to return a strongly typed ModalRoute<T>? (instead of ModalRoute<dynamic>?)
• widgets/buttons: replace FancyTextButton, FancyOutlineButton, and FancyRaisedButton with FancyFlatButton, FancyOutlinedButton, and FancyElevatedButton, respectively
  • These buttons no longer accept individual style parameters like textColor, color, or shape, but instead accept an optional ButtonStyle? style, just like the original Material Design buttons