Visual coverage measures design system adoption by analyzing rendered pixels on user devices¶
Insight: Visual coverage is a pixel-based metric that quantifies what percentage of rendered screen real estate uses design system components. The approach includes component weighting (critical UI gets higher scores than layout elements), live dashboards tracking adoption across teams, and framework-agnostic JavaScript analysis. Preply collects 300,000+ measurements daily across their product.
Detail: This enables clear dashboards showing adoption, identifies which teams use the system effectively, guides prioritization, and supports leadership conversations. The framework is agnostic to underlying tech stacks.