Just a piece of plywood with upright dividers spaced for dishes under the bridgedeck, with a simple facade of pieces that hold them in but allow you to lift one out. It's well ventilated.
I think I've moved it, cut it down, a few times and it could use rebuilding, which I keep saying I'll do, when I cover the 51 year old Formica, some day. I wouldn't change much though, it works, stuff stays put.
We have smaller shelves above that holds glassware, mugs, etc.