I want to thank
@KayW for jumping in to save the day with a reveal. I did not think I was going to be able to do it and she did a last minute graphic that is a lot better than mine (less wordy, go figure).
Still there were some things I wanted folks to know so, you are not done with me yet....
The "All or Nothing" title, I hope everyone realized, was carefully chosen for the puzzle since depending on which way you look at it either all the colors together is black and none of the colors present is white! Interestingly enough there is a line of thought that states EXACTLY the opposite - figures, but it is still Black and White.
The "double cross" which was so neat and tied in so well was, in truth, serendipity. The placement of the clue that crossed two B&W entries was intentional, but it was only later that I realized the symbol we see on Oreos (and the Nabisco logo itself) is:
A circle topped with a two-bar cross and is supposed to stand for a European symbol of quality. Experts believe the design for the Nabisco symbol arose from the Cross of Lorraine, which was carried by the Knights Templar during the First Crusade in the 11th century. I have looked at that symbol (as I am sure we all have) just before one of those delicious B&W treats (often dripping with milk) disappeared down the hatch and never thought of it.
Ever wonder just how ubiquitous the word OREO is in crosswords? It is the most common brand name in the NYT puzzles, having been used over 3000 times (in the NYT) since they started doing crosswords (though it wasn't until 1993 that it referenced the cookie instead of another meaning) and is popular because it has three of the five most common letters used in crosswords (A and S are the other two) and is the 7th most used answer (AREA, ERIE, ALOE, ARIA, ELSE and ANTE beat it). Now for some real trivia - know what is considered the oddest clue for OREO? It appeared in the USA Today puzzle 2/12/2020 "Cookie that some people eat with mustard". Yep, that would have been a real head scratcher. Editor Erik Agard said credit goes to a coworker, who spotted it in Shay Mitchell’s pregnancy craving mukbang YouTube posting.
OK, that is a LOT more than you wanted to know, but for the 44 people who solved it (Thank you!) and for all the rest who just HAD to know more about Oreos, there you go.