Hi all! We're trying to figure out how to design the basement stairs to transition between two very different spaces.For background, we just resurfaced the basement floor. It's different shades of grey (painted concrete). We also fixed our stairs and built new walls. In contrast, the upstairs is traditional - wood floors, grey walls, white trim. How can we paint the stairwell to link them? What color to paint the walls, treads and risers? We're thinking of adding a runner but aren't sure what color or pattern would work.We tend to go to traditional colors but also love pops of bright colors to give the space life.Thank you!! PS - pics in comments.