Here's the winning swatch and how it was done. It starts with a single color of acid stain with a darker color powdered dye sprinkled on to the floor like parmesan cheese on a plate of pasta. As the stain - which is concentrated with muriatic acid to aid in penetration - reacts with the powder, it releases the powdered dye into the floor giving it that reddish flowing tint you see in the image. Once this first step is completed, the floor is swept up, washed with water, and as soon as everything is dried, a second light coating of dye is applied again to the floor to further set the color. Finally, the polyurethane goes on. Voila!