Magic number in the CustomerImageConverter class in Silverlight Patterns in Action.csproj

public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
    string size = (string)parameter;
            
    int id = int.Parse(value.ToString());

    
    if (id > 91) 
        id = 0; // New customers are getting the default silhouette icon.





    
    var uri = new Uri(HtmlPage.Document.DocumentUri, "Assets/Images/Customers/" + size + "/" + id + ".jpg");
    return new BitmapImage(uri);
}