Make React Suspense boundaries visually distinguish suspended nodes by graying out irrelevant boundaries

Make React Suspense boundaries visually distinguish suspended nodes by graying out irrelevant boundaries targets a $1.8B = 3,000,000 frontend teams × $600 ACV average for DevTools and developer UX productivity tooling total addressable market with medium saturation and a year-over-year growth rate of 12% YoY — developer tooling and frontend observability market growth (industry estimates combining frontend observability and developer productivity SaaS, 2023-2025).

Key trends driving demand: Framework-level observability is rising — frontend teams demand tools that understand React, Suspense, and concurrent rendering to reduce debugging time.; OSS-first developer tools convert quickly — developers adopt free extensions and later convert teams to paid telemetry and CI integrations.; Shift-left performance practices — teams integrate performance checks in CI, creating demand for actionable, pre-production instrumentation.; Single-page app complexity increases — as apps use more async rendering, tooling that surfaces runtime anti-patterns becomes more valuable..