How is the quality of appearance in design usually determined?

The quality of appearance in design is significantly impacted by reflected light. This is because reflected light influences how we perceive the colors, textures, and forms of a design. Light interacts with surfaces and materials in various ways, affecting the visibility and aesthetic quality of a space or object. When light reflects off a surface, it can enhance features or create shadows, thereby impacting the overall visual experience.

Reflected light contributes to the perception of depth and material qualities, which are crucial in architectural design. By manipulating light, designers can elevate the visual effect of their work, guiding attention and creating mood. This understanding of light's reflection is fundamental for architects and designers aiming to achieve an aesthetically pleasing environment.

In contrast, factors such as color intensity, tonal value, and spatial geometry also play roles in design appearance. However, they do not directly address how light interacts with surfaces to create visual effects, which is what makes reflected light a central determinant in the quality of appearance in design.