title: simple text color in rich text box
body: <p>I can find a million examples of doing reg ex to apply syntax highlighting to a rich text box. but what i need it just a simple way to add in a word of a diffrent color. </p>
  
  <p>What would the code be to just put the words "Hello World" into a textbox and have Hello be red and World be green?</p>
  
  <p>This code doesnt work.</p>
  
  <pre><code>this.richTextBox1.SelectionColor = Color.Red
  this.richTextBox1.text += "Test"
  </code></pre>