After seeing (and feeling ) Grant's Black Shadow, I too ordered one. "How apparent is the "Shadow" tartan effect?" In some light, you don't notice the tartan pattern. In Cavscout's above photo, you can see the pattern. For the price and quality, you can't beat these SWKs.

"My father was an Ulster man, proud Protestant was he.
Me mother was a Catholic girl, from county Cork was she.....
My father, he was Orange and me mother, she was green."

As for safron or green? It's up to you. I'd wear either... but the green would be the colour for Butler's Rangers.