I took a slightly different approach and used reflective tape. Forgive me for the pictures being on a different bike...it'll be a few months before I make the jump to the NC700X. For all of you who can't stand scooters, don't look below.
I'm attaching three pictures. The first is taken outside in the daytime with no flash. The reflective tape is black and doesn't show up unless you catch it in the light just right. Most of what you see is just a pin-striping width.
The picture below is using the camera flash. You can see where the reflective tape is easily.
Here's what the bike looks like at night.
I went with reflective tape largely because of what I experienced over many many hours of working the flightline while in the USAF. All our maintenance stands and uniforms had reflective tape on them. If any light at all hit the reflective tape, it stood out, even if a quarter mile away and past the headlight's light pattern. I also like to keep things simple and this required no wiring.
I commute in Seattle and so often it is dark and rainy. Even if it is in the daytime, the road is gray, the sky is gray and the road spray in between makes everything gray. The reflective tape seemed a good way to add to my visibility under those conditions.
There's a lot of tupperware surface on a Burgman, but I'll bet the same idea can be applied to the NC700X.