_patchCardFav (the Song Details drawer's like -> card heart sync) hardcoded
`classList.toggle('text-white', !fav)`, so toggling the like from the drawer
left List-View rows' `text-fb-textDim` idle class in place — the exact
dim-heart bug #654 fixed for the on-card click handler, reintroduced on the
drawer path. Read the per-heart `data-fav-idle` and swap that class instead,
mirroring wireCards. +regression assertion in v3_favorites_toggle.test.js.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Favoriting from the tree / "List View" flipped the glyph ♡→♥ but the
heart stayed grey until a re-search — reported macOS+Windows, open since
0.3.0 / 2026-06-25.
One shared wireCards() [data-fav] handler serves both the grid card and
the List-View row, but they render with different idle colours (grid
text-white, List View text-fb-textDim) and the handler only ever removed
the grid's text-white. So in List View text-fb-textDim lingered next to
the freshly-added text-fb-accent and won by CSS source order — the glyph
changed but the colour didn't, until a re-search re-rendered the row.
Each heart now declares its idle colour via a data-fav-idle attribute;
the handler swaps exactly that class (so only one colour class is ever
present) and writes the new state back onto the in-memory song model so a
re-render / virtualized-grid recycle agrees instead of reverting.
Tests: tests/js/v3_favorites_toggle.test.js. Full JS suite 810 tests; the
13 pre-existing unrelated failures are unchanged.
Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
