import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'dart:ui' as ui;

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: Scaffold(
        body: const MyStatelessWidget(),
      ),
    );
  }
}

class MyStatelessWidget extends StatelessWidget {
  const MyStatelessWidget({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Stack(
      children: [
        Transform(
            transform: Matrix4.fromFloat64List(Float64List.fromList([
              1, 0, 0, 0, //
              0, 1, 0, 0, //
              0, 0, 1, 0, //
              100, 100, 0, 1, //
            ])),
            child: ImageFiltered(
                imageFilter: ui.ImageFilter.matrix(Float64List.fromList([
                  0.707, 0.707, 0, 0, //
                  -0.707, 0.707, 0, 0, //
                  0, 0, 1, 0, //
                  0, 0, 0, 1, //
                ])),
                child: Container(
                  color: Colors.red,
                  width: 200,
                  height: 200,
                ))),
        Container(
          width: 100,
          height: 100,
          color: Colors.blue,
        )
      ],
    );
  }
}