Lime Curd

Did another component of the upcoming cake tonight... lime curd. Basically, I took Dede Wilson's Lemon Curd recipe and substituted limes. Tastes great, but I was hoping for more dramatically green color. Taste is key, though.

In the pictures, you can see the various phases of ingredients, mixing over a double boiler, stirring forever, and finally the curd, with visible flecks of micro-plane zested rind.