Board Thread:Questions and Answers/@comment-25523075-20161027061326/@comment-28905095-20161027194423

Do you need to light up the redstone? It can be used without having signal going through. If you however choose to power it, you would have to repower it every now and then to keep a consistent color.Here are two examples I just made in Creative Mode to show two concepts.

In the first example I use Stone Bricks, Cracked Stone Bricks and Mossy Stone Bricks scattered around, with non-powered redstone wiring.

In the second example from the bottom up I've tried Gravel, Stone , Gray, Light Gray and Black Wool. To the left is non-powered Redstone, and to the right there is powered Redstone. Note that powered Redstone will give off some smoke indicate that it's powered.

I'm leaning towards the first example but it does require some resources. In the second example using Gravel kind of looks nice, and gives purpose to otherwise not so useful Gravel block. In both cases I'd say that there is no need to power the redstone to achieve a good separator line.