You could do a smokey-grey backpainted glass or glass tile. Very clean and understated. For a more industrial look, there are some great stainless steel tiles out there. Good luck.

About something like these

A linear tile would look great. Something like this maybe.

Here are the tiles I went with, and love, love love them. My cabinets are also very dark, and my countertop is caesarstone

I've seen a lot of modern linear tile work lately as well and it creates a great look.

Hey Mt West .... Who KNEW? The backsplash you posted (which I LOVE LOVE LOVE) says it doesn't require grout?!?! Can it be so? I HATE grout. I'm OVER grout. lol Is this the answer to my prayers?? Albeit, a pricey answer :)

Oh yea, about the OP question... I'd vote for something VERY simple and solid color. I personally go buggy looking at a busy counter with a "complimentary" busy backsplash - which to me is NOT complimentary. Let one surface be the star and the other one the silent witness! :) jmho

Consider a natural stone if you want to complement the light fixture

Take the 4' splash off of the back wall. Tile from the counter top up to the cabinets.

Don't much care for the busy mosaic tile backsplash with the granite- it will compete with your beautiful granite. The above picture is a perfect example of what I mean!
The tiny mosaic tile is a fad and will die out.
I also think it is not in keeping with your clean modern industrial look that you are trying to achieve. You have a beautiful kitchen don't go for the "pixillated " mosaic tiles.
Go with Debs ideas much better IMO.

Once again I will push for white subway tile, especially if you are leaving the 4" granite counter backsplash;)

A light, reflective glass and marble back splash would contrast beautifully with your mocha brown cabinets and granite counters.

Christi, on behalf of Thos. Baker