* Make WhatsApp Web follow your Omarchy light/dark theme
WhatsApp Web's "System default" theme follows prefers-color-scheme and
repaints live, so a small theme bridge is enough to make it track the active
Omarchy theme with no reload and no WhatsApp-specific CSS.
- omarchy-chromium-theme-host: push-only native messaging host that reads the
active theme and emits it on connect and on every theme-set. Unlike copy-url/
yt-dlp (one-shot), it stays connected and pushes, since theme-following needs
the page to learn about changes while it is running.
- omarchy-chromium-theme-refresh: SIGUSR1s the running host(s); called from
omarchy-theme-set's post_theme_commands.
- whatsapp-theme extension: decides dark vs. light from the theme background's
WCAG luminance and drives a prefers-color-scheme shim, so WhatsApp's own
theme does the repaint.
Wired like copy-url/yt-dlp and whatsapp-slim: bundled under
default/chromium/extensions, added to --load-extension, host manifest
registered from the fresh-install/refresh/browser-install paths, existing users
covered by a migration.
The host is named com.omarchy.theme (a generic theme bridge) rather than
WhatsApp-specific, so other bundled web-app extensions can follow the theme by
connecting to it and adding their id to the host manifest's allowed_origins.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* Address review on the WhatsApp theme bridge
Light/dark was decided by weighting raw sRGB bytes, which the comment above
it already described as WCAG relative luminance. sRGB is gamma-encoded, so
the weights only mean anything once each channel is linearized — the two
steps the shell already does in Panel.qml. Every shipped theme classifies the
same either way; a mid-tone custom background does not (#808080 reads 0.502
unlinearized and 0.216 linearized).
Drop the `tabs` permission. The WhatsApp host permission is what lets
tabs.query filter by url and what populates tab urls in onUpdated, so `tabs`
only widened this to every tab's url and title. Tabs without permission
arrive with url unset and fall out on the existing guard.
Give the two new bin commands their metadata directives. Without a summary
they failed test/cli's command metadata check.
Cover all three: the classifier over unambiguous and mid-tone backgrounds,
and the manifest for the permission it should no longer ask for.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* Scope color-scheme listeners to their query and test the real host
Registrations all shared one Set keyed only by callback, so an app that gave
the same callback to both the dark and the light query and later detached one
detached the other too, leaving the query it still held deaf to theme
changes. Record the owning MediaQueryList and match on it. Adds native
dedupe behaviour while there: registering the same callback twice fired it
twice. addListener is a legacy alias of addEventListener("change"), so the
two share one registration space and either remover cancels either add —
which is also why useEvent had nothing left to select and is gone.
The refresh test signalled a synthetic sleeper carrying its own USR1 trap, so
it proved the refresh command sends a signal but would have stayed green
through any regression in the host's own trap, watchdog wait, or second
write. Drive the real host over a FIFO instead, count framed messages, and
assert the second one is a usable theme. Verified by neutering the host's
USR1 trap: the old test passed, this one fails.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* Harden Chromium theme bridge
* Address Chromium theme bridge review
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: David Heinemeier Hansson <david@hey.com>
