using Avalonia.Controls; using Avalonia.Interactivity; using Avalonia.Media; using Project.Controller; namespace Project.View; public partial class MenuView : UserControl { readonly AppController? _controller; public MenuView() { InitializeComponent(); } public MenuView(AppController controller) { InitializeComponent(); _controller = controller; } private void Button_Click(object? sender, RoutedEventArgs e) { ((Button)sender).Background = Brushes.Blue; } }