Textures in design usually refer to?

Textures in design primarily refer to the feeling or perception of surface quality. This encompasses how a surface feels to the touch or looks visually, affecting the overall aesthetic and emotional impact of a design. Texture can be perceived in various ways—smooth, rough, matte, glossy, and so forth—contributing to the depth and interest in visual works.

This concept plays a crucial role in creating environments and conveying messages within designs, as it can evoke emotions, set a mood, and create focal points. Recognizing and effectively using texture allows a designer to enhance their work distinctly and communicate more profound meanings to the audience.

The other options relate to different aspects of design but do not accurately capture the essence of what texture is in this context. A specific color palette pertains to the color choices made in design; a pattern of lines refers to visual elements rather than the quality of surfaces; and an arrangement of shapes focuses on composition rather than texture itself.