v1.2.1 fixes a white flash on page refresh introduced in v1.2. The curtain now paints at first-paint in all cases — no frame of white on any normal site. Per-site exclusions are preserved and work identically to v1.2 (excluded sites see a brief curtain before reverting — only affects sites you opted out of). No other changes.

v1.2 adds per-site exclusions. Sites where the dark background leaks through and makes text unreadable can now be disabled individually — no more whack-a-mole with the global toggle.

Per-site "Enable on this site" toggle in the popup — uncheck to exclude the current site
Apex domain covers all subdomains (excluding github.com excludes gist.github.com, docs.github.com, etc.)
Previously-open tabs pick up exclusion changes immediately without reloading
Dynamic curtain registration eliminates the sub-frame dark flash when globally disabled (background owns injection state synchronously)

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.