Each door is a plywood slab with two inlaid metal tiles, maple 'X' accent inlay strips, and maple trim.
The metal tiles are the focal point of the cabinet. We bought them about 16 years ago, and we've always loved them. We used them for a wall art project for our kitchen. We replaced that display with a photo gallery wall earlier this year, and we're glad we could reuse a few of our favorite tiles.
The finish is General Finishes Polyurethane Water Based Topcoat (flat sheen) toned with GF Water Based White Wash stain. For the black pieces, I used Rust-Oleum Painter's Touch 2x Flat Black spray paint.
The overall concept was my wife's idea, based in part on an At Home Mora 2 cabinet she saw online.
My part was helping define the final dimensions and modeling, building, and finishing the actual cabinet.
Thanks, Ross. It would have been nicer for me if that doors hadn't warped. (I added an update on the project post asking for ideas about addressing that.)