Initial-letter glyphs (SP / AM / DZ / ...) read as placeholder
once the brand-logo equalizer disc was visualised — each chip
should carry the service's actual mark. Wired the same logo
URLs the header-action worker orbs already load (Spotify press
asset, iTunes Wikimedia SVG, Deezer brandfetch symbol, Last.fm
avatar, Genius logo, MusicBrainz Wikimedia SVG, AudioDB local
PNG, Tidal / Qobuz / Discogs SVGRepo marks, Amazon local SVG)
into a new _RATE_GAUGE_LOGOS map and rendered as an ``<img>``
inside the avatar disc.
Visual details
- Disc backdrop switched from a solid accent-gradient fill to a
dark glass radial + accent-tinted ring + accent drop-shadow
on the logo. The service color still anchors the chip without
competing with the logo for contrast.
- Logo sized at 75% of the disc for breathing room. Drop-shadow
pops dark / multi-tone marks against the dark backdrop.
- Avatar bumped to 34px / 28px / 26px across desktop / tablet /
mobile so logos read clearly at every breakpoint.
Resilience
- ``<img onerror>`` swaps in an initial-letter glyph span on
load failure (CDN drop, network blip). The ``.rate-eq-avatar
--fallback`` variant restores the original accent-gradient
disc look so the fallback chip still reads as branded.
Asset
- AudioDB ships no public logo URL — saved the existing header-
action base64 PNG (~30 KB) to ``webui/static/audiodb.png`` so
the equalizer can reference it as ``/static/audiodb.png`` like
Amazon already does.
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