I seem to recall it was grey or off white once.
but
2016 ( and 2015) are a dirty yellow with a hidden linetype ( about ltscale of 1)
2014 is a solid off-white line.
I draw on a black background.
Thanks for the input guys.
The aesthetics suit me ; and I have better things to do today than build a custom engine.
I've done a proxy line along with a reactor and grread, but that was more work than it was worth.
.... exactly!