Purism focused on the relationship among geometric angles and shapes, emphasizing which aspect to achieve a unified effect?

In Purism, the emphasis is primarily on the clarity and simplicity of geometric forms, which is integral to creating a unified effect in a composition. While color can influence the overall atmosphere and perception of a work, in the context of Purism, the focus on geometric angles and shapes underscores a more significant interest in form. This movement aimed to express the essence of objects through their pure shapes, often reducing complex subjects to their fundamental geometrical elements.

The objective was to achieve harmony and unity in art by presenting forms in their most distilled and simple state. By portraying shapes such as squares, circles, and triangles in a balanced manner, Purism seeks a visual language that transcends individual elements and instead focuses on the overall structure and composition. Thus, the correct choice reflects the movement's core values of clarity and the relationship between shapes rather than color, texture, or scale.