Spool and color_catalog rows carry extra_colors (comma-separated hex
stops) and effect_type (14 visual variants: surface effects, sheen,
structural). The shared FilamentSwatch component renders gradient,
conic, effect overlay, and alpha-checkerboard consistently across the
inventory grid, table, group banner, card, ColorSection preview, and
catalog editor. Catalog hex_color accepts #RRGGBBAA so catalog entries
can carry transparency too.
The paste field accepts the exact format 3dfilamentprofiles.com puts on
its filament details pages, so users can copy a multi-colour combo
directly. The effect dropdown spans the full filament-variant
vocabulary -- surface effects (sparkle/wood/marble/glow/matte), sheen
variants (silk/galaxy/rainbow/metal/translucent), and structural
variants (gradient/dual-color/tri-color/multicolor). None of these
fields touch MQTT/firmware -- pure visual hint.
Spool group-key extended to include extra_colors + effect_type so
"Group similar" no longer collapses visually distinct spools.
Migrations: 4 idempotent ALTER TABLE ADD COLUMN (Postgres-safe), plus
ALTER COLUMN hex_color TYPE VARCHAR(9) on Postgres only (SQLite ignores
VARCHAR length).
Tests: 42 new backend (35 unit + 7 integration), 20 new frontend (14
FilamentSwatch + 3 ColorCatalogSettings + 3 InventoryPageGrouping
regression). 3522 backend + 1582 frontend tests pass; ruff clean.
Localised across all 8 UI locales.
maziggy
a34beaa599