title: Better way to switch Brush colours?
body: <p>I'm new to C# and working on a snake project. 
  I'm trying to make it rainbow coloured, is there a better way to switch between six colours and then repeat?</p>
  
  <pre><code>public Brush Colour(int i)
  {
      Brush snakeColour;
      switch (i)
      {
          case 0:
          case 6:
          case 12: 
          case 18: 
          case 24:
              snakeColour = Brushes.HotPink;
              break;
  
          case 1: 
          case 7: 
          case 13: 
          case 19: 
          case 25:
              snakeColour = Brushes.Orange;
              break;
  
          case 2: 
          case 8: 
          case 14: 
          case 20: 
          case 26:
              snakeColour = Brushes.PeachPuff;
              break;
  
          etc.
  
          default:
              snakeColour = Brushes.White;
              break;
      }
  
      return snakeColour;
  }
  </code></pre>
  
  <p>Any suggestions?</p>