Visual entropy occurs when an interface uses arbitrary spacing values (e.g., 7px margin, 13px padding, 21px gutter). The resulting layout feels subtly disjointed and unaligned.
Modern digital product design standardizes all dimensions, padding, margins, and component heights on multiples of 8 pixels (8, 16, 24, 32, 40, 48, 64px):
An 8pt grid automates developer handoff and guarantees mathematical alignment across screens.
Level 4 · Principles of Design