SteffenBlake

using System;

namespace FizzBuzz
{
    internal class Program
    {
        private static void Main(string[] args) => new Action<Action<int>>(f => (f = (x => (x > 1 ? new Action(() => f.Invoke(x - 1)) : () => { }).Invoke()) + f).Invoke((args != null && args.Length > 0 ? new Func<int>(() => int.Parse(args[0] ?? "100")) : () => 100).Invoke())).Invoke(x => { Console.WriteLine(new Func<string, string>(s => s == "" ? "{0}" : s).Invoke((x % 3 == 0 ? "Fizz" : "") + (x % 5 == 0 ? "Buzz" : "")), x); });
    }
}

SteffenBlake

        //'Block' is a Textblock in my form

        //All of this method works perfectly fine
        private void AddLine(string text)
        {
            if (Block.Inlines.Any())
                Block.Inlines.FirstInline.Foreground = Brushes.Black;

            var line = new Run(text+"\n") {Foreground = Brushes.Black};
            Block.Inlines.Add(line);

SteffenBlake

        private void Main_OnLoaded(object sender, RoutedEventArgs e)
        {
            var thread = new Thread(() => TextThread("Testing..."));
            thread.Start();
        }

        private void TextThread(string text, Brush brush = null)
        {
            var brushFixed = brush ?? Brushes.Black;