A new `template` value source evaluates a hardened, sandboxed Jinja
expression over the live values of other value sources — the system's
first float combinator.
Backend:
- Shared engine (utils/template_expr.py): ImmutableSandboxedEnvironment with
filters/tests and auto-injected globals stripped; only min/max/abs/round/
clamp exposed; rejects **, string/collection-literal repetition, attribute
access and non-global calls; NaN/inf-safe result coercion.
- TemplateValueSource model + TemplateValueStream runtime: compile-once,
primitives-only eval context, raw[name] exposure, eval_interval throttle,
ref-counted input acquire/release, rename-safe hot-update.
- Validation: unbound-variable + reserved-name rejection, reference
cycle/depth guards (depth-only at create, full cycle at update), runtime
acquire() depth backstop, and delete referential-integrity.
- API: Create/Update/Response schemas + discriminated unions, _RESPONSE_MAP,
and an advisory POST /value-sources/validate-template endpoint.
- Demo seed: a static source plus a template combinator example.
Frontend:
- Editor modal section: repeatable inputs list (EntitySelect rows), a
zero-dependency Jinja syntax highlighter, a hints/reference panel, and a
debounced live validator that gates Save (stale-response-safe).
- Graph editor: read-only template node with one edge per input.
- i18n (en/ru/zh), icon, and card rendering.
Tests: engine, stream, factory/cycle, validate endpoint, and demo seed.
README: add free & open-source (MIT) framing; add a Platforms table (Windows/Linux/macOS/Docker supported, Android-TV build marked experimental, scrcpy phone-capture retained); expand the LED device list to ~20 protocols; correct storage to SQLite, the auth model, and resource names (Output Targets, Automations); add a prebuilt-download section; remove the Architecture and Acknowledgments sections; embed dashboard, channels, live-preview, and device-picker screenshots.
docs/API.md: full rewrite from the live route modules — all 253 endpoints across 34 modules, grouped by resource with REST + WebSocket tables, accurate auth model and WS handshake, worked examples, and sensitive-endpoint markers. Replaces the stale v0.1.0 stub.
server/CLAUDE.md: storage is now SQLite (BaseSqliteStore / ledgrab.db / LEDGRAB_DATA_DIR / data_migrations.py); fix the auth description (loopback anonymous, LAN rejected with 401 — not all endpoints open); router registration happens in api/__init__.py.
A user-chosen icon ("mouse", "motherboard", "keyboard"…) renders as a
44x44 instrument-panel face plate at the leading edge of .mod-head on
device cards. Optional per-card; null hides the plate and reverts to
the existing badge-only head.
- Storage/schema: new icon, icon_color fields on Device + DeviceUpdate /
DeviceResponse. SQLite stores entities as a JSON blob, so no migration
is needed; from_dict defaults handle existing rows.
- Curated 47-icon library across six categories (Hardware / Lighting /
Rooms / Media / Signal / Ambience), reusing the existing Lucide path
module; adds circuit-board, bed, armchair, leaf paths.
- mod-card.ts: ModHeadOpts gains iconHtml / iconColor / iconAttrs;
ModMenuItemOpts gains optional dataAttrs. The plate is rendered when
iconHtml is supplied; otherwise no layout change.
- Picker modal (icon-picker.html + features/icon-picker.ts): live
preview, search, six category tabs, recent strip, channel-color
override toggle. Wired through document-level click delegation on
[data-icon-picker-trigger="<deviceId>"] — no window globals, no
inline onclick string. Sets the precedent for migrating other card
actions off window in a follow-up.
- en/ru/zh locales for picker UI + categories.
Includes a docs/ mockup that's the source-of-truth for the design.
Release Notes overlay redesign (scoped via .release-notes-shell)
- Backend exposes release.assets (name/size/download_url) through
UpdateReleaseInfo so the frontend can render real download links.
- New masthead: eyebrow + display-font title + tag/published/pre-release
chip strip + close/external action buttons; opts out of layout.css's
global `header { height: 60px }` and `header::before` accent bar that
were leaking into the overlay's <header>.
- Markdown body: <code> filenames are wrapped in clickable <a> via fuzzy
asset match (exact basename, then same-extension token-overlap), with
per-asset description tooltip and a small download glyph.
- Per-asset description derived from filename pattern (Windows installer
/portable/msi, Linux tarball/AppImage/deb/rpm, macOS dmg/pkg, Android
apk/aab, iOS ipa, generic archives) with i18n keys in en/ru/zh.
- Hide checksum / signature side-files (.sha256/.sha512/.sig/.asc/...).
Settings modal & dashboard polish
- ds-section refresh, rail-channel routing, notif matrix updates.
- Dashboard customize panel + per-account layout updates.
- New docs/settings-modal-redesign.html design reference.
Streams / targets / color-strip
- Stream cards rewrite (cards.css, streams.css, streams.ts).
- Composite stream + metrics history adjustments.
- WLED target processor + color-strip pipeline refinements.
- Color-strip WS source streamer touch-ups.
Misc
- Perf charts overhaul; tabular game-integration / HA / MQTT / weather
source cards; donation/sync-clocks/scene-presets minor polish.
- New i18n keys across en/ru/zh.
Test infrastructure
- conftest pre-creates the test DB so main.py's legacy-data migration
doesn't shovel the user's production DB into the test temp dir.
- test_preferences_notifications wipes its own setting at the start of
the defaults test (was relying on isolation it never enforced).
Pre-commit gates: ruff clean, tsc clean, npm run build clean,
pytest 899/899 passing.
Dashboard cards (mod-card system)
- New mod-card / mod-menu modules backing dashboard cards
- Reworked card colors, sections, dashboard layout, perf charts
- Channel-stripe styling, hairline borders, signal-flow animation
on running cards, refined metric grid
Multiselect bulk toolbar
- Replaced tri-state checkbox with explicit Select-all / Deselect-all
icon buttons; both disable when not applicable
- Dim + slight blur on non-selected siblings during selection mode so
the active picks pop; selected card gains a subtle lift + primary-color
glow halo
- Bulk tick uses ICON_CHECK from the icon registry (was U+2713) and
scale-pops in via a cubic-bezier overshoot keyframe
- Toolbar restyled with luxury gradient bg, top accent stripe, glass
blur, neon hover glows on each button group
Settings modal
- Tab bar converted to icon-only (cog / hard-drive / bell / palette /
refresh / help) so labels never overflow at any locale; title and
aria-label preserve translated names. Tabs distribute evenly via
flex: 1 1 0 + space-around — no overflow possible
- IconSelect auto-populates <option> elements when the underlying select
is empty, fixing the blank notification triggers (root cause: setting
.value on an empty select is a no-op)
- Tab activation calls scrollIntoView on the active button as a safety
net for narrow viewports
Modal exit animation
- Added symmetric fadeOut + slideDown keyframes; .modal.closing applies
them with animation-fill-mode: forwards
- Modal.forceClose() defers display:none until animationend (with timer
fallback). State cleanup (focus, body lock, stack) runs immediately so
callers querying state get correct values
- isOpen returns false during the close animation; open() cancels any
in-flight close so re-open works during the animation
- prefers-reduced-motion disables all modal animations
Locale picker
- Dropped redundant English/Русский/中文 long-form labels — picker now
shows only EN / RU / ZH
- IconSelect trigger/cell hides empty icon/label slots via :empty so the
layout collapses cleanly for minimal items
Filter input (cards section)
- Embedded magnifier icon via data URI (no HTML change); monospace
uppercase placeholder, lux-bg-0 background, neon focus ring with inset
shadow + outer glow
- Reset button only shows when the input has content (CSS-only via
:placeholder-shown sibling selector — JS-resilient)
Snack toast
- Glass background (gradient + backdrop-blur) with top channel-color
accent stripe matching the modal/toolbar language
- Per-type --toast-ch drives border/glow/timer color (success → primary,
error → danger, info → info)
- Undo button gets a tinted hover with channel-color halo
Top header toolbar
- Removed hairline border from .header-btn for a flatter look; hover
keeps the subtle background tint and primary-color glow
Device URL hyperlink
- Styled .mod-meta__link to pick up the card's --ch accent (instead of
inheriting browser-blue underline). Dotted underline at rest solidifies
on hover; soft text-shadow glow; web icon dims at rest, brightens on
hover
Misc
- ICON_CHECK and ICON_HARD_DRIVE added to the icon registry
- Existing card-redesign demos checked in under docs/
- Removed obsolete docs/plans/device-typed-configs.md
SP110E peripherals silently tear down the GATT link ~1s after connect
unless a two-write vendor handshake (01 00 → FFE2, 01 B7 E3 D5 → FFE1)
arrives immediately. Without it the first real write hangs 30s then
reconnect-loops forever. Adds optional BLEProtocol.init_writes executed
on connect, plumbs a per-write char_uuid through both transports, and
fixes the SP110E color/power frames from an incorrect 5 bytes to the
documented 4 bytes.
Windows/WinRT robustness:
- asyncio.wait_for hangs on bleak because WinRT IAsyncOperations refuse
to cancel. _bounded_await() uses asyncio.wait() instead so timeouts
actually return control even when the inner task is uncancellable.
- BleakClient connect by raw MAC string times out when WinRT guesses
address type wrong; switched to pre-scanning with BleakScanner and
passing the resolved BLEDevice, which carries the address type.
- Target-start fetch timeout bumped to 30s with retry disabled so the
UI doesn't abort during the BLE pre-scan + connect + handshake path.
UI:
- Settings modal exposes Protocol Family (IconSelect grid, shared with
add-device via parameterized ensureBleFamilyIconSelect) so users can
fix a wrong family pick without recreating the device. Govee AES key
row toggles on/off with family selection.
Also turns LAN auth back on in default_config.yaml, logs start_processing
requests on entry for easier diagnosis, and captures the full debug trail
in docs/BLE_LED_CONTROLLERS.md for future BLE work.
Refs the mbullington SP110E protocol gist for the handshake bytes.
ProcessorManager: replace all isinstance checks with property-based
dispatch via base TargetProcessor (device_id, led_client,
get_display_index, update_device, update_calibration).
Remove gamma/saturation from ProcessingSettings, ColorCorrection
schema, serialization, and migration — these were never used in the
processing pipeline and are handled by postprocessing template filters.
Delete dead apply_color_correction() function.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This is a complete WLED ambient lighting controller that captures screen border pixels
and sends them to WLED devices for immersive ambient lighting effects.
## Server Features:
- FastAPI-based REST API with 17+ endpoints
- Real-time screen capture with multi-monitor support
- Advanced LED calibration system with visual GUI
- API key authentication with labeled tokens
- Per-device brightness control (0-100%)
- Configurable FPS (1-60), border width, and color correction
- Persistent device storage (JSON-based)
- Comprehensive Web UI with dark/light themes
- Docker support with docker-compose
- Windows monitor name detection via WMI (shows "LG ULTRAWIDE" etc.)
## Web UI Features:
- Device management (add, configure, remove WLED devices)
- Real-time status monitoring with FPS metrics
- Settings modal for device configuration
- Visual calibration GUI with edge testing
- Brightness slider per device
- Display selection with friendly monitor names
- Token-based authentication with login/logout
- Responsive button layout
## Calibration System:
- Support for any LED strip layout (clockwise/counterclockwise)
- 4 starting position options (corners)
- Per-edge LED count configuration
- Visual preview with starting position indicator
- Test buttons to light up individual edges
- Smart LED ordering based on start position and direction
## Home Assistant Integration:
- Custom HACS integration
- Switch entities for processing control
- Sensor entities for status and FPS
- Select entities for display selection
- Config flow for easy setup
- Auto-discovery of devices from server
## Technical Stack:
- Python 3.11+
- FastAPI + uvicorn
- mss (screen capture)
- httpx (async WLED client)
- Pydantic (validation)
- WMI (Windows monitor detection)
- Structlog (logging)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
alexei.dolgolyov