MakeMeYellow.cs

// Make the background goldenrod yellow :)

    [Export(typeof(IWpfTextViewCreationListener))]
    [ContentType("text")]
    [TextViewRole(PredefinedTextViewRoles.Document)]
    internal sealed class CreationListener : IWpfTextViewCreationListener
    {
        public void TextViewCreated(IWpfTextView textView, IEnvironment context)
        {
            textView.Background = Brushes.PaleGoldenrod;
        }
    }