Note that when the two areas overlap (which is most of the time) the overlap shows the green under the red as a different colour.
Red is partially transparent so you can see them both.
Thanks! It's a great idea, it will certainly help to new users still learning about the 5Nd!
As for the graphical representation, I think it would have been a bit more intuitive if it was just a green line above the graph. The way it is done now, the overlapping green and red create just another color, so a non-experienced user will see it as three different zones (even four zones if you take the white area). I guess this may cause more questions and confusion...
Nope.
The html5 canvas was designed by a bunch of graphically challenged retards.
I tried overlapping patterns and non-patterns to make it a little more obvious but the rules of 'alpha' on a canvas vary depending on what commands you use to put data on a canvas - and what put the current data there also.
The current look is pretty obvious, and anyone can ask - I'm around more than every other pool op.
Edit: and the Shift Graph now shows the average of the Approx 5Nd instead of the whole graph.