vovoa, no, not always gold, that was just an example. Use any color you want on the dark side, it's scrappy.
Jane, I loved being in your 30's and batiks D4P swaps, along with your Jacob's Ladder swap (Bonnie Hunter Floribunda). I was thinking of joining this one, but I don't have many lights in my stash. But
your post picturing the blocks you've made looks like you are using 'mediums' for the 'light' side of the block. For example, your blocks with green both look like they have a 'medium' green-- but the one block uses the 'medium' green for the 'light' side, while the other block uses it for the 'dark' side. Does the light side just need to be lighter than the dark side-- that's all? If that's the case, maybe I'll join next month! :-) Let me know.