I should have included a green or an aqua in this so the yellow green shades would be more evident. These all are a shades of light yellow green. These colors are not all that easy to find and were just added to the newest version of the PG. The second from the left is the only light yellow olive green I have seen so far and is unlisted. One of each mold number known is shown (OX, 00, 6, and 7) - view larger pic for full appreciation.