They have even decided to continue this theme into their clothes. While she hasn't settled on the final design, Susan is considering having the majority of her gown done in a creamy off-white, and the godet (and maybe even the bodice) in a golden yellow tone, with a lace overlay to mute the contrast a bit.
Here are some swatch samples to give an idea of the kind of look she has in mind:
There is more to their vision than this - I haven't really done it justice here. Maybe Susan will add a comment to this post and elaborate a bit? (hint, hint...)
In any event, I think that this is going to result in a truly beautiful and one-of-a-kind wedding dress - for a truly beautiful and one-of-a-kind bride, in a truly beautiful and one-of-a-kind ceremony! :)