useCallSpeakers rebuilt the speaker Set from only the mutated tiles in each
batch (so a still-speaking participant whose tile didn't mutate was dropped),
and observed a static querySelectorAll NodeList (so tiles for participants who
joined mid-call were never watched). Rewritten to mirror useRemoteAllMuted in
the same file: a single body-level MutationObserver (subtree+childList+attrs)
re-scans ALL [data-video-fit] tiles on each relevant mutation. The speaking
criterion (::before background-image !== 'none') and the id (aria-label +
isUserId) are unchanged, so behavior on real EC DOM is a strict superset.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
jaredandClaude Opus 4.8
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