Which of the following is NOT a characteristic of the International Style?

The International Style is notable for its emphasis on functionality and minimalism, which is distinctly characterized by the use of industrial materials such as glass and steel. This architectural movement strives for an uncluttered aesthetic, featuring open interiors that promote fluidity of space and function. Simplicity in form is another defining trait, as structures are designed without unnecessary ornamentation or elaborate decorations, conveying a clear and straightforward expression of materials and structural elements. Thus, the characteristic of elaborate decorations contradicts the fundamental principles of the International Style, making it the correct answer. This style aims to focus on the beauty of simplicity and the honest expression of materials rather than decorative embellishments, which are seen as extraneous in this context.