TarjetaEmisora had the only good fallback for a station with no artwork --
a deterministic pick from 4 bundled illustrations with a gradient/glyph
last resort. FilaEmisoraPlana's flat rows, the Escuchar hero, the "Tus
emisoras" grid cell, the mini player and the full player each had their
own, separate, flat primaryContainer square instead.
Extract the good fallback into PluriStationArtFallback and use it from
every one of those call sites. The selection formula (asset order,
codeUnits-sum modulo) is preserved exactly, since navegacion_auto.dart
mirrors the same formula independently for Android Auto's own drawable
rotation.
The prototype's station thumbnail is a plain 44-48px square, radius
11/12, with no ring or glow (t4 lines 84, 175, 227, 302, 614).
TarjetaEmisora's compact row variant instead painted a 58x58 circle
wrapped in a SweepGradient ring (magenta/cyan/coral) and a 22-blur
glow behind a 50x50 ClipRRect(18).
Replace it with a 48x48 ClipRRect(12) square. Update the loading
shimmer placeholder to match (was also a 58x58 circle block).
S6, Tier 1 visual-fidelity pass (audit id 2521).
The prototype states an explicit system rule (t4 line 40): "opaque list
surface #102532, glass only in the chrome and in the active card."
PluriGlassSurface backs nearly every card/row in the app, but always
rendered translucent + blurred (glassSurface, blur 18) — the listSurface
token (#102532) existed since WU1 but was only ever used at reduced
alpha, never opaquely.
Add a `glass` flag to PluriGlassSurface, defaulting to false: an opaque
listSurface fill with no BackdropFilter. Chrome (MiniReproductor) and
the active/now-playing card (Escuchar's hero, when a station is
playing) opt into the old translucent look via `glass: true` — every
other of the ~26 call sites needs no change and now renders opaquely.
Also fix the card radius: the prototype's dominant card radius is 18
(t4 lines 512, 613, 715, 133); radiusMd was 22, a systematic +4px drift
across every card that defaults to it. Retune TarjetaEmisora's own
radius ternary so its compact (row) variant uses the dominant row
radius, 14, instead of inheriting the card radius.
S3+S4, Tier 1 visual-fidelity pass (audit id 2521).
- Replace all hardcoded Color literals outside lib/tema with theme tokens (new static brand palette in PluriWaveTokens); media notification uses the brand color instead of the Material default purple
- Favorite button on station cards grows to a 48dp target and becomes an independent semantics node for screen readers (Semantics container fix)
- All flutter_animate call sites route through the PluriAnimate reduced-motion gate (zero direct .animate() left)
- Locale-aware short dates via intl DateFormat (new lib/l10n/formato_fechas.dart) replacing the hardcoded DD/MM/YYYY; proper plural messages for the favorites counter; example stream URL as a localized key - all 13 locales
- Rounded shimmer placeholders matching card radii; shimmer loading state in search instead of a bare spinner; rounded icon variants unified in settings; bottom-sheet conventions on the custom station form
- Fix latent debug crash: vacation editor read AppLocalizations in initState
- 11 new tests (121 total green), flutter analyze clean
FreeTLab
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