The tooltips in Intellisense already do this, as do the hover-over info tooltips (I'd show you if I could add an image to this comment...).
var x = 3 * 2; var list = new List<int>(); list.Add(x);
If you hover over Add (or over the constructor), the word 'List' is colored differently within the tooltip -- can I also color it in the actual SyntaxEditor?
Also, is there a way to change the default colors for the Classifications that do exist (ie: String, Number, etc.)? Is there a sample project that would have shown me (if only I'd looked more closely)?