I get what you are saying about using Function.prototype.toString, I am more fascinated by the coloring according to the datetime string, than by the quine aspe

I get what you are saying about using Function.prototype.toString, I am more fascinated by the coloring according to the datetime string, than by the quine aspect. If it were only about the latter, I agree that it wouldn't be very interesting (or not even a proper quine)