17. Working with WPF (Continued) <Button Width="60"> OK <Button.Background> Blue </Button.Background> </Button> Button btn=new Button(); btn.Content="OK"; btn.Width=60; btn.Background=new SolidColorBrush(Colors.Blue); Dim btn As New Button btn.Content="OK" btn.Width=60 btn.Background=new _SolidColorBrush _(Colors.Blue) OK