There are usually at least 3 ways to pleat a kilt, sometimes more.
For the best advice I would read this article by M.A.C. Newsome

http://kiltmaker.blogspot.com/2005/1...ipe-makes.html

I think that I would preferably pleat that fabric to the light green stripe. I think it would stand out a lot and when the kilt swished, it would have the dark undertones. Just my own personal opinion though. For the best results, pleat the kilt to every possible combination (Dark green with red stripe, Dark green with the white stripes, light green, and to the Sett) and see which one you prefer the most.

You should pleat the fabric all of those different ways and take a picture each time (obviously don't sew anything yet) and post the various combinations on here so that we can all see.


Good luck!