MarcinusX

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

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Fab overlay transition',

MarcinusX

https://marcinszalek.pl/tag/bmi-calculator/

MarcinusX

import 'package:flutter/material.dart';

const TextStyle _titleStyle = TextStyle(
  fontSize: 16.0,
  fontWeight: FontWeight.w500,
  color: Color.fromRGBO(14, 24, 35, 1.0),
);

const TextStyle _subtitleStyle = TextStyle(
  fontSize: 8.0,