Smoke rounds 3-4 (owner feedback). Checkpoint during iteration.
Ambient (the big one): rewrote ambient.wgsl from translating gaussian blobs to a
METABALL field (r²/d² summed + smoothstep iso-surface) with 2-octave domain warp
— lobes fuse/stretch/split like an amoeba / lava lamp (the Cider motion that was
missing), faster clock, more contrast.
Surfaces made background-aware (translucent when the dynamic background is on):
- Search results view (root + toolbar), artist Network panel + its tab-row
header (transparent to avoid double-translucent compounding), JUMP TO bar
(JumpNavBar bar-bg passed in — can't import ShellState without a cycle).
- Discover toolbars + tab pill + BrowseHeaderTools; SearchResultsView toolbar.
- CircleAction (shared: playlist/album/artist/etc. action buttons) on-surface
secondary fill goes glass; playlist Sort dropdown; QbzSelect closed control.
- New app-background-bar-alpha knob (0.3, env QBZ_BG_BAR_ALPHA): thin bars go
MORE transparent than panels (surface-alpha 0.5).
- Content well: frosted tint (0.22) + 1px hairline border → distinct panel.
- Album/Artist header gradient auto-suppressed under the dynamic background
(they clashed); header text stays light on the dynamic backdrop.
- Discover carousel edge-fade "shadows" hidden when active (Carousel /
PlaylistCarousel / ArtistCarousel / PinnedCarousel).
Base: 76ea5a82. Prior checkpoint: 4e405338.
cc