As he filled in the negative space with a chaotic splatter of burgundy (his mother's favorite color, the color of old blood), a light flickered at the end of the tunnel. A security car.
This is the most common reference. DGK is a popular skateboarding brand. They have a custom logo font (often a bold, graffiti-style, or stencil-like typeface) that is not publicly available as a standard free font. You would typically see their stylized lettering on merchandise and graphics. Dgk Font
"Get out of here," the guard said, not moving his eyes from the wall. As he filled in the negative space with