a way that you pick up color with an absorbent material? Blotting.

a technique where you scrape away color to reveal color underneath? sgraffito.

I agree with the first one, but I don't know about the second.

The second answer is right.

That's correct! Blotting is indeed a way to pick up color with an absorbent material. When you want to pick up excess or spilled color, you can use a paper towel, sponge, or any absorbent material to gently press and soak up the color. The material absorbs the color by capillary action, pulling the liquid into its fibers.

As for the technique where you scrape away color to reveal the color underneath, it is called sgraffito. Sgraffito is commonly used in various art forms such as painting, pottery, and even in nail art. To achieve this effect, you apply multiple layers of different colors on a surface. Once the paint or glaze is dry but not fully cured, you take a tool like a knife or a stylus and scratch into the top layer, removing some of the color to expose the layer(s) underneath. By scraping away the top layer, you create texture, depth, and reveal the hidden colors beneath.