Zentangle has released their new tan tiles, which they are calling Renaissance Tiles. These tiles bring together the two techniques already used in tangling, white on black tiles to bring the light to the dark, and black on white tiles with shading to add the dark or shadow to the light.
The tan tiles make possible creating images integrating these two techniques. The tan tiles are tangled in black, brown and white and use the juxtaposition of these two techniques as figured prominently during the Renaissance in a drawing technique called Chiaroscuro. Think Rubens and Rembrandt.