Nox gives you instant control over any website's theme. Force dark mode on bright sites, or light mode on dark ones — with a single click or keyboard shortcut (Alt+D). Features: - Dark mode for any website using smart CSS inversion - Light mode to brighten dark sites - Normal and high contrast options (Pro) - Per-site settings remembered automatically - Works on every website — no site-specific fixes needed - Lightweight, fast, no page content collected Free users get 3 active sites. Upgrade to Pro for unlimited sites and high contrast mode. Categories: select Appearance and Privacy & Security Force dark mode or light mode on any website instantly. Per-site theme memory, adjustable contrast, and keyboard shortcut (Alt+D). Works everywhere.