We're renovating our kitchen and can't make up our minds about the backsplash (between the cabinetry; sorry about the mess). The countertops are quartz, dark blue/black, with tannish brown flecks. We were going to take out the little border on the wall to make the space more open, but can't make up our minds on the backsplash tile. I was thinking simple subway tile, but then again, I'm boring.

You're input would greatly be appreciated.