Ok I gave it a go. I used a piece that does not have the white undercoat. And end product is yes it does fade with a dark green.

We did do a heap of DY2 sets with a white undercoat. As ski man said. I would have to check to see if we had a set of them still. But without it on such a gark green it makes it go a little red. DY2 is meant for Yellow or White so hence there normally isnt an issue.

If your keen I will see if I have a set with white undercoat.

Cheers
Jason

By the way the photo makes it look much worse than it is. I can even send it to you if you like. Or I'm sure I can bring it to a show if we happen to be at the same one etc.