: A mark that spans a distance between two points, which can vary in thickness, direction, and curvature.
: Three-dimensional objects that have height, width, and depth (e.g., spheres, cubes). visual property
: The way an object feels—or looks like it would feel—such as rough, smooth, or bumpy. : A mark that spans a distance between
: The lightness or darkness of tones, ranging from white to black. Preattentive Visual Properties which can vary in thickness