Add automated screenshot tests to GitHub Actions and post visual diffs to PRs

Add automated screenshot tests to GitHub Actions and post visual diffs to PRs targets a $600M = 500K dev teams × $1,200 ACV total addressable market with medium saturation and a year-over-year growth rate of 10% YoY — estimated growth for developer tooling and CI/CD adjacent markets (sources: industry reports and growth in CI usage and GitHub Actions adoption).

Key trends driving demand: Shift to GitHub Actions — more teams centralize CI/CD on GitHub Actions which creates demand for GitHub-native integrations and Marketplace apps.; Component-driven development — Storybook and component libraries increase the need for deterministic visual testing at the component and page level.; Faster shipping cadence — shorter release cycles push teams to automate visual checks as part of PR reviews to avoid regressions slipping into production.; Lower-cost cloud compute and storage — cheaper resources make running screenshot tests at scale economical for small vendors and startups..