What is the primary focus of lines in visual design?

The primary focus of lines in visual design is to form the shapes of an image. Lines serve as the building blocks of visual communication, providing structure and defining the boundaries of shapes. When utilized effectively, lines can delineate forms, create outlines, and contribute to the overall composition in a way that guides the viewer's eye through the design.

While mass is an important aspect of visual design, lines primarily relate to the definition of shapes rather than the volume or mass within a design. Texture, which refers to the surface quality of an object, may be suggested by lines but is not the main function lines serve. Contrast can be achieved through the use of lines, but ultimately, lines themselves are primarily used to shape and outline elements within a visual context. Thus, understanding the role of lines in forming shapes is vital for effective visual design.