Which of the following is NOT a principle of design?

Mass is not considered a fundamental principle of design in the same context as balance, contrast, and rhythm.

In design, principles such as balance refer to the distribution of visual weight in a composition, ensuring that elements are arranged harmoniously. Contrast is the use of opposing elements, like light and dark colors or large and small shapes, to create visual interest and draw attention. Rhythm involves the repetition of elements to create a sense of movement and flow within a design.

While mass can refer to the perceived weight or volume of an object and is relevant to design considerations, it is not classified as a core principle. The principles of design provide a framework for creating visually appealing and effective designs, whereas mass is more of a characteristic that can influence how those principles are applied.