v1.1 moves the curtain CSS into a manifest content_scripts.css entry so it now bypasses page CSP and works on strict sites like GitHub and banking portals. The !important rules are gone — author CSS naturally overrides the curtain via normal cascade ordering, which removes the old load-time DOM cleanup and the race conditions that came with it. Updating the extension no longer resets your On/Off toggle to default, the redundant <all_urls> top-level permission has been dropped (the content script still runs everywhere via content_scripts.matches), and the curtain logic has been consolidated into a single curtain.css file. No change to core behavior: dark background only, no per-element inversion, no broken pages.