export component MainWindow inherits Window {
    width: 300px;
    height: 150px;
    Text {
        text: "Значение: " + root.counter;
        x: 20px;
        y: 40px;
    }
    Button {
        text: "+";
        clicked => { root.increment(); }
        x: 20px;
        y: 80px;
    }
}