--- name: dec-gestalt-principles description: Gestalt principles of grouping — proximity, similarity, common region, continuity, closure, figure/ground, common fate, prägnanz, uniform connectedness. The visual logic behind how the eye assembles elements into wholes. Use when laying out a screen, deciding what reads as related, designing cards/sections, or diagnosing why a layout feels disorganized. tags: [gestalt, visual-design, layout, perception, ux, always-on] --- # Gestalt Principles of Grouping How the eye assembles individual elements into wholes — the perceptual logic behind layout. Spacing and grouping communicate relationship before any label does. - **Proximity** — near things are perceived as related. The strongest, cheapest grouping tool: spacing *is* meaning. - **Similarity** — alike things (color, shape, size) group together. - **Common Region** — a shared container = shared meaning (cards, panels). - **Continuity** — the eye follows lines and curves; aligned elements read as a sequence. - **Closure** — the mind completes incomplete shapes; you can imply form with less. - **Figure/Ground** — separating subject from background; ambiguity here causes visual strain. - **Common Fate** — things moving together are seen as a unit (animation as grouping). - **Prägnanz (Simplicity)** — ambiguity is interpreted in the simplest possible form. - **Uniform Connectedness** — visually linked elements (a line, a border) read as connected, overriding proximity. ## How to apply - Group related controls by **proximity** before reaching for borders or boxes — whitespace is the first tool. - Use **common region** (a card) only when proximity alone isn't enough; borders add visual weight. - Check **figure/ground**: the primary content must clearly sit above the background, especially on glass/translucent surfaces. - A layout that "feels off" usually violates proximity or alignment (continuity) — measure the gaps.