Which design principle focuses on elements that are connected through proximity?

The principle that focuses on elements being connected through proximity is indeed proximity. This design principle states that objects that are close to each other are perceived as related or grouped together by the viewer. When elements are situated near one another, it helps to convey a sense of organization and association, making it easier for users to understand the relationships between different elements within a design.

By utilizing proximity, designers can create visual hierarchies and facilitate a more intuitive navigation experience. This principle encourages the grouping of related components, which enhances usability and aids in quicker comprehension of the content or layout presented.

The other principles mentioned focus on different aspects of design. Symmetry relates to balance and harmony, common region pertains to elements grouped within the same boundary, and continuity refers to the visual flow or the eye's journey through elements. Each plays a unique role in design but does not specifically center around the idea of physical closeness dictating the relationship between elements as proximity does.