Piglettank

import 'package:flutter/material.dart';

/// A widget that displays a floating green box with two distinct shadows,
/// centered on the screen.
class FloatingShadowBox extends StatelessWidget {
  /// The color for both shadows.
  static const Color _shadowBaseColor = Color(0xFF5C5C5C);

  /// Configuration for the first shadow.
  static const BoxShadow _shadow1 = BoxShadow(

Piglettank

/// https://dartpad.dev/?id=29e521dd61c7410d189a6f9f2047ab9a

import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

Piglettank

typedef Callback = void Function(dynamic);

void _doSomething(Callback callback, dynamic data) {
  callback(data);
}

class Animal {
  final String name;

  Animal({required this.name});

Piglettank

import 'dart:math';
import 'package:flutter/material.dart';

void main() => runApp(const AnimatedContainerExampleApp());

class AnimatedContainerExampleApp extends StatelessWidget {
  const AnimatedContainerExampleApp({super.key});

  @override
  Widget build(BuildContext context) {