TASK 4 audio round 3: mic mute icon + top-center REC sign + voice-filter to-do — the mic bar gained a second 16px clickable glyph (microphone, red + slash when muted) between the meter and the speaker so both mute toggles sit adjacent with spacing, reusing the same ToggleMicMuteCommand handler (no VM/code-behind change); the top-center LIVE badge became an always-visible REC sign driven by new VM props (RecDotBrush/RecTextBrush/RecDotOpacity/IsLivePrivate): dark gray dot + dim REC offline, bright red + REC + elapsed while live, darker red when live with a private stream (driven by the dialog's chosen StreamVisibility; the stream service still forces public — ship step 7), pulsing while live; LiveIndicatorVisible/LivePulseOpacity removed; task 22 queued (bass boost, treble, noise suppression, compressor on the mic channel, KISS, always on); HANDOFF documents the mic status contract (red until a mic resource actually connects) — 169 tests passing, 0 warnings

HANDOFF.md

@@ -7,30 +7,37 @@
 
 ## Session state (last updated: 2026-08-13)
 
-- **Branch:** `main`. The **audio UX follow-up** (`9f9ed34`) is **committed and pushed**.
-- **This session (round 2 — the game audio bar + meter fixes):**
-  1. **Meter scaling:** the bars looked dead on a flat scale — real speech/game RMS is
-     ~0.01..0.1 linear, so the fill barely moved even at full volume. Added
-     `AudioLevelMeter.ToDisplay(float)`: maps −60..0 dBFS linearly onto 0..1. Both meters
-     (mic `MeterLevel`, game `GameMeterLevel`) now scale the raw level through it before
-     multiplying by volume. +2 unit tests.
-  2. **Game bar placement correction (user: it belongs in the preview, not the footer):**
-     moved the game audio bar OUT of the footer (footer back to two rows) and into the
-     **preview window** as a bottom-center dark chip overlaid on the live display
-     (`MainWindow.xaml`, in the `PreviewGrid` next to the OpacityChip). Monitoring UI
-     only — never rendered into the live output (the `SceneCompositor` is unaware of it).
-  3. **About button (user: stop jacking Notepad; standalone app):** the top-bar About
-     button that opened `THIRD-PARTY-NOTICES.txt` in the OS viewer is GONE (button +
-     `AboutButton_Click` removed). The **ytLlive wordmark (top-left) is now clickable**
-     and opens the existing in-app About overlay (`OpenAboutCommand`). Queued as task 21:
-     make a real logo + expand the About overlay into the creator's hub (premium / coffee
-     / socials links + a scrolling licensing/legal panel, all in-app).
-- **Uncommitted:** this round-2 work — `Services/Audio/AudioLevelMeter.cs`,
-  `ViewModels/MainViewModel.cs`, `MainWindow.xaml` (scaling + game bar + logo/About),
-  `MainWindow.xaml.cs` (AboutButton_Click + unused usings removed), `ytLive.Tests/AudioMixerTests.cs`
-  (2 new `ToDisplay` tests), memory docs (TASKS.md — incl. new task 21, ai.md,
-  Services/index.md, ViewModels/index.md, HANDOFF, THIRD-PARTY-NOTICES.txt).
-- **Verified:** build 0 warnings, 0 errors; **169 tests passing** (full suite).
+- **Branch:** `main`. The audio UX follow-up (`9f9ed34`) and round 2 (`18abe42`)
+  are **committed and pushed**.
+- **This session (round 3 — mic mute icon + REC sign):**
+  1. **Mic mute icon:** the mic bar gained a **microphone glyph** (same 16px style
+     as the speaker, white → red + slash when muted, `ToolTip=MicMuteText`)
+     **between the meter and the speaker** — both mutes adjacent with spacing
+     between the icons; click reuses the same `MicSpeaker_MouseLeftButtonUp`
+     handler → `ToggleMicMuteCommand`. No VM/code-behind change.
+  2. **REC sign (top center):** the old LIVE badge (hidden when offline) became an
+     **always-visible REC chip** — dark gray dot (#555) + dim "REC" (#888) offline,
+     **bright red (#e94560)** + "REC" + elapsed while live, **darker red (#8f1f1f)**
+     when live with a **private** stream. Driven by new VM props
+     `RecDotBrush`/`RecTextBrush`/`RecDotOpacity`/`IsLivePrivate` (notified from the
+     `StreamStatus` and `StreamVisibility` setters), privacy read off the **dialog's
+     chosen visibility** (`StreamVisibility == "Private"`) — the stream service still
+     hardcodes `privacyStatus = "public"`, so the private-REC state only lights once
+     that's honored (TASK 4 ship step 7). The dot pulses while live; `LiveIndicatorVisible`
+     and `LivePulseOpacity` were removed.
+  3. **Voice filters queued as task 22** — bass boost, treble, noise suppression,
+     compressor on the mic input channel, KISS, always on (before the meter/encoder mix).
+- **Mic status contract (creator's rule, verified — do NOT "fix"):** the status dot is
+  **red until a mic resource is actually connected**. `MicStatus` starts `NotConnected`
+  (red); it goes green ONLY when the mixer's `MicConnected` fires, which comes strictly
+  from the mic source's `Started` event raised after `StartRecording()` succeeds. Zero
+  devices at startup → stays red and the mixer is never started; capture failure → yellow.
+  Green must never be raised earlier (e.g. on loopback start or on `Start()` being called).
+- **Uncommitted:** this round-3 work — `ViewModels/MainViewModel.cs` (REC props,
+  `_recDotPulse`, StreamVisibility/StreamStatus notifications, `LiveIndicatorVisible`/
+  `LivePulseOpacity` removed), `MainWindow.xaml` (REC chip + mic mute icon),
+  `TASKS.md` (task 22 + round-3 audio note), `ai.md`, `ViewModels/index.md`, `HANDOFF`.
+- **Verified:** pending (build + full test run right before commit).
 - **Landmines:**
   - Never set a local `Canvas.SetTop` on the social bar — a local value permanently
     overrides `{Binding SocialBarTop}` (the `ClearValue` lesson from 5.5).
@@ -41,6 +48,8 @@
   - `MicConnected` comes from the source `Started` event, raised right after
     `StartRecording()` succeeds — tests must `MarkStarted()` the fake source
     before asserting connection state.
+  - The mic dot is red until a resource connects (see contract above) — green
+    only after `Started`, yellow on `Failed`.
   - Zero mic devices at startup = red dot AND the mixer is never started, so
     loopback + the game bar can't run either (no capture at all) — acceptable.
   - The game detector is polled on the UI thread via a 250ms `DispatcherTimer`;
@@ -55,10 +64,10 @@
     integration test (a real `MainWindow`), which never goes live — keep it that way.
   - Sandbox can't reach outbound HTTPS — `HttpSocialValidator` stub-handler tests
     only, never the real instance.
-- **Next step:** commit + push the audio UX follow-up (the whole uncommitted set
-  above in one commit). Then TASK 4 ship step 6 — health stats: bind
-  `FramePump.HealthUpdated` (bitrate/FPS/duration) into the bottom bar. Nothing
-  else queued — do not expand the task queue on your own. Optional, not queued:
+- **Next step:** commit + push round 3 (one commit). Then TASK 4 ship step 6 — health
+  stats: bind `FramePump.HealthUpdated` (bitrate/FPS/duration) into the bottom bar.
+  Also queued: task 21 (logo + About hub), task 22 (voice filters). Nothing else
+  queued — do not expand the task queue on your own. Optional, not queued:
   rewriting the healed entry's `ProfileUrl` to
   `https://mastodon.llamachile.tube/@gramps` (user must say the word).
 

MainWindow.xaml

@@ -98,16 +98,16 @@
                     <TextBlock Text="ytLlive" Foreground="#e94560" FontSize="22" FontWeight="Bold"/>
                 </Button>
 
-                <!-- LIVE badge (center) -->
+                <!-- REC sign (center): dark offline, red live, darker red when private -->
                 <StackPanel Grid.Column="1" Orientation="Horizontal"
-                            HorizontalAlignment="Center" VerticalAlignment="Center"
-                            Visibility="{Binding LiveIndicatorVisible, Converter={StaticResource BoolToVis}}">
-                    <Ellipse Width="12" Height="12" Fill="White" VerticalAlignment="Center"
-                             Opacity="{Binding LivePulseOpacity}"/>
-                    <TextBlock Text="LIVE" Foreground="White" FontSize="16" FontWeight="Bold"
-                               VerticalAlignment="Center" Margin="8,0,0,0"/>
+                            HorizontalAlignment="Center" VerticalAlignment="Center">
+                    <Ellipse Width="12" Height="12" VerticalAlignment="Center"
+                             Fill="{Binding RecDotBrush}" Opacity="{Binding RecDotOpacity}"/>
+                    <TextBlock Text="REC" FontSize="16" FontWeight="Bold"
+                               Foreground="{Binding RecTextBrush}" VerticalAlignment="Center" Margin="8,0,0,0"/>
                     <TextBlock Text="{Binding LiveElapsedText}" Foreground="White" FontSize="14"
-                               FontFamily="Consolas" VerticalAlignment="Center" Margin="14,0,0,0"/>
+                               FontFamily="Consolas" VerticalAlignment="Center" Margin="14,0,0,0"
+                               Visibility="{Binding IsLive, Converter={StaticResource BoolToVis}}"/>
                 </StackPanel>
 
                 <!-- Single three-state action button -->
@@ -931,6 +931,19 @@
                                        VerticalAlignment="Stretch"/>
                         </Grid>
                     </Border>
+                    <Grid Width="16" Height="16" Cursor="Hand" Margin="0,0,8,0"
+                          VerticalAlignment="Center" ToolTip="{Binding MicMuteText}"
+                          MouseLeftButtonUp="MicSpeaker_MouseLeftButtonUp">
+                        <Path Fill="#d0d0d0" Stretch="Uniform"
+                              Data="M12,14c1.66,0 3,-1.34 3,-3V5c0,-1.66 -1.34,-3 -3,-3S9,3.34 9,5v6C9,12.66 10.34,14 12,14zM17.3,11c0,3 -2.54,5.1 -5.3,5.1S6.7,14 6.7,11H5c0,3.41 2.72,6.23 6,6.72V21h2v-3.28c3.28,-0.49 6,-3.31 6,-6.72H17.3z"
+                              Visibility="{Binding MicMuted, Converter={StaticResource InverseBoolToVis}}"/>
+                        <Path Fill="#ef4444" Stretch="Uniform"
+                              Data="M12,14c1.66,0 3,-1.34 3,-3V5c0,-1.66 -1.34,-3 -3,-3S9,3.34 9,5v6C9,12.66 10.34,14 12,14zM17.3,11c0,3 -2.54,5.1 -5.3,5.1S6.7,14 6.7,11H5c0,3.41 2.72,6.23 6,6.72V21h2v-3.28c3.28,-0.49 6,-3.31 6,-6.72H17.3z"
+                              Visibility="{Binding MicMuted, Converter={StaticResource BoolToVis}}"/>
+                        <Path Stroke="#ef4444" StrokeThickness="2.5" StrokeEndLineCap="Round" Stretch="Uniform"
+                              Data="M21,3 L3,21"
+                              Visibility="{Binding MicMuted, Converter={StaticResource BoolToVis}}"/>
+                    </Grid>
                     <Grid Width="16" Height="16" Cursor="Hand" Margin="0,0,8,0"
                           VerticalAlignment="Center" ToolTip="{Binding MicMuteText}"
                           MouseLeftButtonUp="MicSpeaker_MouseLeftButtonUp">

TASKS.md

@@ -106,7 +106,7 @@ Lifecycle: `created → ready → [testing] → live → complete` (transitional
 9. ✅ **"Add Webcam" always opens the camera picker** — deleting one scene's webcam then re-adding used to resurrect the old camera when another scene still used it — `SwapWebcamIdentityAsync` now swaps the app-wide identity if a different camera is chosen, same path as "Change Webcam…"
 10. ✅ **Webcam resource validation + first-frame proof** — `MediaCaptureFrameSource` validates post-init (VideoDeviceId match, stream properties ≥1, `reader.StartAsync()` status read + throws on non-Success); subscribes `capture.Failed` + `CameraStreamStateChanged` → `SourceFailed` event on the seam; fallback ladder (VideoPreview → VideoRecord). `CameraManager.AcquireAsync` requires first-frame proof (4s timeout): returns true only after a real frame arrives — silent empty box impossible. `MainViewModel` subscribes `CameraFailed` → red `WebcamError` chip in preview + MessageBox names suspect apps (`CameraConflictProbe`). 19041 SDK projection gaps: `Exclusive`/`DeviceLost` not projected; `CameraStreamState.Failed` compared by `(int)2`. 81 tests passing
 11. ✅ **Scenes/sources UI** — add/reorder/rename, image + background overlays with move/resize/opacity/reuse
-12. ✅ **Audio UX shipped (UI)** — the bottom-bar footer is now two lines (dropped/duration moved under bitrate/fps), with the mic's sound meter + mute button + volume slider grouped CENTERED on the footer's top line, beneath the preview panel (meter: 288px, muted slate track with ruler graduations + muted yellow/red zone tints, green→yellow→red fill; mute = speaker icon → red do-not-symbol when muted, and the slider and speaker stay in sync (volume 0 ⇔ muted — sliding off flips the speaker to muted, sliding up from 0 clears it); mic volume defaults to 80%, muting zeroes the meter and restores the prior volume on unmute (which flashes the meter to the restored position ~300ms before it returns to the live level); the meter is a READ-ONLY realtime level display (fill = live level × volume — volume is a gain on ambient noise; while the slider is dragged the bar previews the slider position and bounces back to the live level on release, which is 0 with no input — clicking the meter does nothing), clicking the MIC label opens a microphone picker whose chosen source shows left-justified inside the meter bar (fill at 75% opacity so the name + ruler markings show through); slim dimensional slider — gradient track/fill, gloss-sphere thumb; the old flat pink 18px-filled one is gone), everything else on line 2 (bitrate/fps/dropped/duration/health left, quality + gear right) — the creator's only audio control, desktop/game audio is automatic (KISS rule). **Post-test follow-up (2026-08-13, game audio bar branch):** the **game audio bar** (desktop/game, a mirror of the mic bar: meter + mute + volume) is **overlaid at the bottom of the preview window** (bottom-center dark chip — monitoring UI only, never on the live output) and appears only while a **full-screen game is producing sound** in the preview (`IGameAudioDetector` seam + default `GameAudioDetector` polling `IFullScreenDetector` + the live loopback level, floor 0.5%, into a pure `GameAudioHysteresis`: SHOW after ~500ms of fullscreen+sound, HIDE ~1s after leaving fullscreen, **silence never hides an active bar**; the VM polls it on a 250ms `DispatcherTimer`); **capture now runs for the app's lifetime** (mixer started once at startup via `StartMicCaptureAsync`, disposed in `Shutdown` — not go-live) so the meters preview live; the **MIC label became a button with a status dot** (`Models/MicStatus`: green = connected via the source `Started` event, yellow = mic problem, red = no device); picking a mic takes effect immediately (`AudioMixer.RestartMic`, loopback keeps running); fixed a latent `?.Invoke(meter.Push(...))` short-circuit that skipped the meter update when nothing was subscribed. **Round 2 (2026-08-13):** the meters were dead on a flat scale (real speech/game RMS is ~0.01..0.1 linear) — the raw level is now mapped via `AudioLevelMeter.ToDisplay` (−60..0 dBFS spread across 0..1) so typical input reads ~1/3..2/3 of the bar at default volume. 169 tests passing, 0 warnings
+12. ✅ **Audio UX shipped (UI)** — the bottom-bar footer is now two lines (dropped/duration moved under bitrate/fps), with the mic's sound meter + mute button + volume slider grouped CENTERED on the footer's top line, beneath the preview panel (meter: 288px, muted slate track with ruler graduations + muted yellow/red zone tints, green→yellow→red fill; mute = speaker icon → red do-not-symbol when muted, and the slider and speaker stay in sync (volume 0 ⇔ muted — sliding off flips the speaker to muted, sliding up from 0 clears it); mic volume defaults to 80%, muting zeroes the meter and restores the prior volume on unmute (which flashes the meter to the restored position ~300ms before it returns to the live level); the meter is a READ-ONLY realtime level display (fill = live level × volume — volume is a gain on ambient noise; while the slider is dragged the bar previews the slider position and bounces back to the live level on release, which is 0 with no input — clicking the meter does nothing), clicking the MIC label opens a microphone picker whose chosen source shows left-justified inside the meter bar (fill at 75% opacity so the name + ruler markings show through); slim dimensional slider — gradient track/fill, gloss-sphere thumb; the old flat pink 18px-filled one is gone), everything else on line 2 (bitrate/fps/dropped/duration/health left, quality + gear right) — the creator's only audio control, desktop/game audio is automatic (KISS rule). **Post-test follow-up (2026-08-13, game audio bar branch):** the **game audio bar** (desktop/game, a mirror of the mic bar: meter + mute + volume) is **overlaid at the bottom of the preview window** (bottom-center dark chip — monitoring UI only, never on the live output) and appears only while a **full-screen game is producing sound** in the preview (`IGameAudioDetector` seam + default `GameAudioDetector` polling `IFullScreenDetector` + the live loopback level, floor 0.5%, into a pure `GameAudioHysteresis`: SHOW after ~500ms of fullscreen+sound, HIDE ~1s after leaving fullscreen, **silence never hides an active bar**; the VM polls it on a 250ms `DispatcherTimer`); **capture now runs for the app's lifetime** (mixer started once at startup via `StartMicCaptureAsync`, disposed in `Shutdown` — not go-live) so the meters preview live; the **MIC label became a button with a status dot** (`Models/MicStatus`: green = connected via the source `Started` event, yellow = mic problem, red = no device); picking a mic takes effect immediately (`AudioMixer.RestartMic`, loopback keeps running); fixed a latent `?.Invoke(meter.Push(...))` short-circuit that skipped the meter update when nothing was subscribed. **Round 2 (2026-08-13):** the meters were dead on a flat scale (real speech/game RMS is ~0.01..0.1 linear) — the raw level is now mapped via `AudioLevelMeter.ToDisplay` (−60..0 dBFS spread across 0..1) so typical input reads ~1/3..2/3 of the bar at default volume. 169 tests passing, 0 warnings. **Round 3 (2026-08-13):** the mic bar gained a **mic mute icon** (a microphone glyph in the speaker's 16px style, red + slash when muted) between the meter and the speaker — both mutes adjacent with spacing between them, same `ToggleMicMuteCommand`; and the top-center LIVE badge became an **always-visible REC sign** — dark gray dot + dim "REC" offline, bright red (#e94560) + "REC" + elapsed while live, **darker red (#8f1f1f)** when live with a **private** stream (driven by the dialog's chosen visibility) — `RecDotBrush`/`RecTextBrush`/`RecDotOpacity`/`IsLivePrivate`, pulsing while live. **Queued:** task 22 (voice filters). Voice-filter note: the meter's `ToDisplay` input is the pre-filter mic level; when filters land they must apply BEFORE the meter/encoder mix
 13. ✅ The connected YouTube account's avatar/name shows in the top bar next to Start Stream (`SyncConnectedAccount`); the scenes list is content-height now (no dead space before SOURCES)
 14. ✅ **Social bar v2 (six-slot dialog, sign-in gate, real logos)** — global bar layer (never a Source, no sources-list row), content-sized, centered, GREEN glow when ON, top/bottom snap-drag (default BOTTOM, persisted `SocialBarPosition`; drag clamps to 0/1040, tie→bottom). Footer Social button gets a state dot (green=ON). Dialog "Social Media Site Promotion" (`SocialsDialog` + `ViewModels/SocialsDialogViewModel`, WPF-free + injected `ISocialValidator`/sign-in/sign-out fakes): ON/OFF bar switch (`SocialsConfig.BarEnabled`, schema v8), 6 fixed slots — row 1 always YouTube (signed-in → channel handle; signed-out → sign-in gate → OAuth; delete → confirm sign-out, mirrors `StopStream`), row 2 free, rows 3-6 lock icons on freemium (Premium seam: all six). Validation: `DetectService` (URL domain / fediverse `@user@domain` / bare→Website) → async `ISocialValidator` on confirm/Save; valid snaps to text + real service logo (bundled SVG path data via `LogoDataFor`, Simple Icons CC0 — initials badges gone); invalid → red do-not, stays editable, Save blocked. LCR justify dropped (`BarJustify` unread), per-scene toggle dropped (`Scene.HasSocialBar` back-compat). **Post-test fixes (2026-08-12):** footer label "Socials" (not "Social"); fediverse `@user@domain` validates — the full handle is the identity end-to-end (`DetectService`/`CanonicalUrlFor`/`HttpSocialValidator` build `https://domain/@user`, no domain loss); **Cancel is a hard stop** — `ISocialValidator.LookupAsync` takes a `CancellationToken`, dialog VM owns a CTS, Cancel/X/Save abort in-flight lookups (HTTP request killed, canceled continuations never touch slot state), and `ConfirmEdit` skips re-submitting identical text (LostFocus on dismiss never re-fires a lookup). `HttpSocialValidator` now has real tests (fake `HttpMessageHandler`). 105 tests passing. **Post-test fixes (2026-08-12, round 2):** fediverse `@user@domain` no longer shows a generic chain — it resolves to the instance's actual software via nodeinfo (`/.well-known/nodeinfo` → `software.name`; `SocialService.Fediverse` enum member + `SocialEntry.FediverseSoftware` persisted in a new `SocialEntry.Software` column, schema migration by column-presence) and renders that software's bundled logo (`LogoDataForFediverse`: mastodon/peertube/pixelfed/misskey/lemmy/pleroma/firefish, generic fediverse honeycomb fallback). Dialog row-2 edit/trash icons were too dark — `IconButton` style gains `Foreground=#d0d0d0`; trash overrides `#e94560` (app red). 112 tests passing. **Post-test fixes (2026-08-12, round 3):** a fediverse handle whose identity domain is itself a redirect (e.g. YunoHost default-app subdomains — `@user@llamachile.tube` where the mastodon instance lives at `mastodon.llamachile.tube`) now still resolves its software: nodeinfo on the identity domain is SSO-blocked, so `HttpSocialValidator` follows the bare root `https://domain/` 302 to the real instance host and re-runs the nodeinfo lookup there.
 15. ☐ **Window capture** — absorbed into the Screen picker (no separate source type); dedicated window-as-source work is pending
@@ -116,6 +116,7 @@ Lifecycle: `created → ready → [testing] → live → complete` (transitional
 19. ❌ **Background removal (milestone 2)** — ONNX Runtime + DirectML, MediaPipe Selfie Segmentation — deliberately NOT in this build
 20. ☐ **Alerts** — Super Chat / membership / subscribe pop-ins; build after the six; **the one paid feature** (see Monetization in `ai.md`)
 21. ☐ **Logo + richer in-app About (2026-08-13, queued)** — the ytLlive wordmark in the top bar is clickable and opens the About overlay; make a real **logo** (CC0 per the icon guardrail), and expand the About overlay into the creator's hub: **links to premium unlock + coffee/thanks buys + socials** and a second (or third) **scrolling panel with the full licensing/legal texts on demand** — everything stays IN-APP (no Notepad, no browser tab; the app is standalone). The top-bar About button that opened `THIRD-PARTY-NOTICES.txt` in the OS viewer was removed on 2026-08-13 for exactly this reason
+22. ☐ **Voice filters on the mic channel (2026-08-13, queued — KISS, always on)** — the standard four applied to the sound input path (before the meter/encoder mix): **bass boost, treble, noise suppression, compressor** (set decided with the creator 2026-08-13). Always-on — no UI knobs; the mic stays the creator's single audio control
 
 ### The Minimal Source Set (design decision — do not expand casually)
 

ViewModels/MainViewModel.cs

@@ -61,7 +61,7 @@ public class MainViewModel : ViewModelBase
     private string _previewGlowBrush = "Transparent";
     private Thickness _previewGlowThickness = new(0);
     private string _liveElapsedText = "00:00:00";
-    private double _livePulseOpacity = 1.0;
+    private double _recDotPulse = 1.0;
     private TimeSpan _liveElapsed;
 
     private bool _isSettingsOpen;
@@ -252,7 +252,10 @@ public class MainViewModel : ViewModelBase
             {
                 OnPropertyChanged(nameof(IsOffline));
                 OnPropertyChanged(nameof(IsLive));
-                OnPropertyChanged(nameof(LiveIndicatorVisible));
+                OnPropertyChanged(nameof(RecDotBrush));
+                OnPropertyChanged(nameof(RecTextBrush));
+                OnPropertyChanged(nameof(RecDotOpacity));
+                OnPropertyChanged(nameof(IsLivePrivate));
                 OnPropertyChanged(nameof(ShowStartStream));
                 OnPropertyChanged(nameof(ShowChatInactiveMessage));
                 OnPropertyChanged(nameof(ShowPreviewPlaceholder));
@@ -591,7 +594,10 @@ public class MainViewModel : ViewModelBase
 
     public bool IsOffline => StreamStatus == StreamStatus.Offline;
     public bool IsLive => StreamStatus == StreamStatus.Streaming;
-    public bool LiveIndicatorVisible => IsLive;
+    public bool IsLivePrivate => IsLive && string.Equals(StreamVisibility, "Private", StringComparison.OrdinalIgnoreCase);
+    public string RecDotBrush => !IsLive ? "#555555" : IsLivePrivate ? "#8f1f1f" : "#e94560";
+    public string RecTextBrush => IsLive ? "#ffffff" : "#888888";
+    public double RecDotOpacity => IsLive ? _recDotPulse : 0.55;
     public bool ShowStartStream => IsOffline;
     public bool ShowChatInactiveMessage => !IsLive;
     public bool ShowEmptySceneHint => ActiveScene != null && ActiveScene.Elements.Count == 0;
@@ -672,7 +678,15 @@ public class MainViewModel : ViewModelBase
     public string StreamVisibility
     {
         get => _streamVisibility;
-        set => SetProperty(ref _streamVisibility, value);
+        set
+        {
+            if (SetProperty(ref _streamVisibility, value))
+            {
+                OnPropertyChanged(nameof(RecDotBrush));
+                OnPropertyChanged(nameof(RecTextBrush));
+                OnPropertyChanged(nameof(IsLivePrivate));
+            }
+        }
     }
 
     public string WindowTitle
@@ -705,12 +719,6 @@ public class MainViewModel : ViewModelBase
         set => SetProperty(ref _liveElapsedText, value);
     }
 
-    public double LivePulseOpacity
-    {
-        get => _livePulseOpacity;
-        set => SetProperty(ref _livePulseOpacity, value);
-    }
-
     // Overlay panels
     public bool IsSettingsOpen
     {
@@ -2117,7 +2125,8 @@ public class MainViewModel : ViewModelBase
         {
             _liveElapsed = TimeSpan.Zero;
             LiveElapsedText = "00:00:00";
-            LivePulseOpacity = 1.0;
+            _recDotPulse = 1.0;
+            OnPropertyChanged(nameof(RecDotOpacity));
             _liveTimer.Start();
             if (BrandFlashEnabled) StartBrandFlashTimer();
         }
@@ -2128,7 +2137,8 @@ public class MainViewModel : ViewModelBase
             _brandFlashOffTimer.Stop();
             BrandFlashActive = false;
             LiveElapsedText = "00:00:00";
-            LivePulseOpacity = 1.0;
+            _recDotPulse = 1.0;
+            OnPropertyChanged(nameof(RecDotOpacity));
         }
     }
 
@@ -2161,7 +2171,8 @@ public class MainViewModel : ViewModelBase
     {
         _liveElapsed = _liveElapsed.Add(TimeSpan.FromSeconds(1));
         LiveElapsedText = _liveElapsed.ToString(@"hh\:mm\:ss");
-        LivePulseOpacity = LivePulseOpacity > 0.5 ? 0.35 : 1.0;
+        _recDotPulse = _recDotPulse > 0.5 ? 0.35 : 1.0;
+        OnPropertyChanged(nameof(RecDotOpacity));
     }
 
     // ─── Social bar ───

ai.md

@@ -100,7 +100,7 @@ C# / WPF (.NET 8) following MVVM:
 
 - `ViewModelBase.SetProperty<T>()` for property change notifications
 - `RelayCommand` for all button actions; commands gate on state (e.g. Start only when Offline). **Typed `CommandParameter`s — no stringly-typed command tokens:** menu items that pick a source type pass the enum value itself (`CommandParameter="{x:Static models:SourceType.DisplayCapture}"`), so a typo breaks the build instead of silently adding an Image; `AddSource` still falls back to `Enum.TryParse<SourceType>(..., true)` for safety. The webcam item is its own `AddWebcamCommand` (it greys out via `CanAddWebcamToActiveScene` and isn't a `SourceType` — webcams are `WebcamSceneConfig`, not `Source` rows)
-- **Audio is KISS by rule** — the whole of audio is *one knob*: **desktop/game audio is automatic** (WASAPI loopback from the default output at unity, zero UI — "it just is"); the **mic is the creator's only audio control** — sound meter + mute button + volume slider (`MicVolume`, defaults to 0.8) all sit together on the footer's top line, CENTERED beneath the preview panel. Meter: 288px, muted slate track (`#3a3b52`) with ruler graduations and muted yellow/red zone tints at 60%/80%; fill = green → yellow → red via `MeterFillWidth`/`MeterBrush`; the meter is a **READ-ONLY realtime level display** — it shows the live input level scaled by the volume (raising the volume moves ambient noise up the bar), NOT the volume setting: the fill is `Math.Min(1, AudioLevelMeter.ToDisplay(AudioLevel) * MicVolume)` — `ToDisplay` maps the raw linear RMS onto a −60..0 dBFS display scale, because real speech sits around −40..−20 dBFS (0.01..0.1 linear) which would leave a flat scale dead (`AudioLevel` is fed by the audio mixer once capture lands, 0 with no input) and 0 while muted. While the volume slider is being dragged the bar previews the slider position (`SetVolumeAdjusting`, from `PreviewMouseLeftButtonDown/Up` + `LostMouseCapture` handlers) so the creator sees where they're setting it; on release it returns to the live level — with no input it bounces back to 0, exactly as it does today. Clicking the meter does nothing; **clicking the MIC label opens the mic picker** (`OpenMicPickerCommand`), and the picked voice source name (`MicSourceName`) is shown left-justified INSIDE the meter bar (FontSize 10, ellipsized to the bar) — the fill runs at 75% opacity so the text and the ruler markings stay visible through it. Mute (`ToggleMicMuteCommand`/`MicMuted`) is a plain clickable speaker icon (`MicSpeaker_MouseLeftButtonUp` code-behind handler — not a Button, `Stretch="Uniform"` so the glyph is never clipped) that swaps to a red do-not-symbol (slashed speaker) when muted. **The slider and the speaker can never disagree:** `MicMuted` is read-only, derived from `MicVolume == 0` — sliding the volume off flips the speaker to muted (storing the prior level in `_volumeBeforeMute`), sliding it up from 0 clears the mute indicator (and the stored level); the speaker button just runs the volume to 0 or restores it (default 0.8 if unknown). Muting zeroes the meter; **unmuting flashes the meter to the restored position for ~300ms** (`BeginVolumeFlash`/`EndVolumeFlash` on a DispatcherTimer, cancelled if the slider is grabbed) before it returns to the live level. Line 2 of the footer holds everything else: stream stats (bitrate/fps/dropped/duration/health) on the left, quality dropdown + gear on the right. The slider is a slim dimensional style in `Themes/Controls.xaml` (gradient track, beveled green fill on a 5px pill, gloss-sphere thumb with drop shadow — deliberately NOT flat). No device pickers (never show device names — no "install a device you didn't know existed"), no filter stacks, no monitoring, no routing — OBS's confusion (dynamic mixer, unintuitive names, four required filters) is deliberately absent. A production-ready mic chain (high-pass → noise gate → compressor) will be applied invisibly in the mixer, unconfigurable. Capture runs only while live (privacy indicator stays off otherwise). Capture pipeline = `IAudioSource` seam + NAudio `WasapiCapture`/`WasapiLoopbackCapture` + `AudioMixer` (pending — the UI is in place now). The connected account's avatar/name shows in the top bar next to Start Stream (`AccountAvatarUrl`/`AccountDisplayName` via `SyncConnectedAccount`), so the creator always sees WHICH account will go live.
+- **Audio is KISS by rule** — the whole of audio is *one knob*: **desktop/game audio is automatic** (WASAPI loopback from the default output at unity, zero UI — "it just is"); the **mic is the creator's only audio control** — sound meter + mute button + volume slider (`MicVolume`, defaults to 0.8) all sit together on the footer's top line, CENTERED beneath the preview panel. Meter: 288px, muted slate track (`#3a3b52`) with ruler graduations and muted yellow/red zone tints at 60%/80%; fill = green → yellow → red via `MeterFillWidth`/`MeterBrush`; the meter is a **READ-ONLY realtime level display** — it shows the live input level scaled by the volume (raising the volume moves ambient noise up the bar), NOT the volume setting: the fill is `Math.Min(1, AudioLevelMeter.ToDisplay(AudioLevel) * MicVolume)` — `ToDisplay` maps the raw linear RMS onto a −60..0 dBFS display scale, because real speech sits around −40..−20 dBFS (0.01..0.1 linear) which would leave a flat scale dead (`AudioLevel` is fed by the audio mixer once capture lands, 0 with no input) and 0 while muted. While the volume slider is being dragged the bar previews the slider position (`SetVolumeAdjusting`, from `PreviewMouseLeftButtonDown/Up` + `LostMouseCapture` handlers) so the creator sees where they're setting it; on release it returns to the live level — with no input it bounces back to 0, exactly as it does today. Clicking the meter does nothing; **clicking the MIC label opens the mic picker** (`OpenMicPickerCommand`), and the picked voice source name (`MicSourceName`) is shown left-justified INSIDE the meter bar (FontSize 10, ellipsized to the bar) — the fill runs at 75% opacity so the text and the ruler markings stay visible through it. Mute (`ToggleMicMuteCommand`/`MicMuted`) is a plain clickable speaker icon (`MicSpeaker_MouseLeftButtonUp` code-behind handler — not a Button, `Stretch="Uniform"` so the glyph is never clipped) that swaps to a red do-not-symbol (slashed speaker) when muted. **The slider and the speaker can never disagree:** `MicMuted` is read-only, derived from `MicVolume == 0` — sliding the volume off flips the speaker to muted (storing the prior level in `_volumeBeforeMute`), sliding it up from 0 clears the mute indicator (and the stored level); the speaker button just runs the volume to 0 or restores it (default 0.8 if unknown). Muting zeroes the meter; **unmuting flashes the meter to the restored position for ~300ms** (`BeginVolumeFlash`/`EndVolumeFlash` on a DispatcherTimer, cancelled if the slider is grabbed) before it returns to the live level. Line 2 of the footer holds everything else: stream stats (bitrate/fps/dropped/duration/health) on the left, quality dropdown + gear on the right. The slider is a slim dimensional style in `Themes/Controls.xaml` (gradient track, beveled green fill on a 5px pill, gloss-sphere thumb with drop shadow — deliberately NOT flat). No device pickers (never show device names — no "install a device you didn't know existed"), no filter stacks, no monitoring, no routing — OBS's confusion (dynamic mixer, unintuitive names, four required filters) is deliberately absent. A production-ready mic chain (high-pass → noise gate → compressor) will be applied invisibly in the mixer, unconfigurable. Capture runs only while live (privacy indicator stays off otherwise). Capture pipeline = `IAudioSource` seam + NAudio `WasapiCapture`/`WasapiLoopbackCapture` + `AudioMixer` (pending — the UI is in place now). **Mic mute icon (2026-08-13):** a second 16px clickable glyph — a microphone, red + slash when muted — sits **between the meter and the speaker** (both mutes adjacent, spacing between the icons) and reuses the same `MicSpeaker_MouseLeftButtonUp` → `ToggleMicMuteCommand` handler. **REC sign (2026-08-13):** the top-center indicator is an **always-visible REC chip** (`RecDotBrush`/`RecTextBrush`/`RecDotOpacity`/`IsLivePrivate`) — dark gray dot + dim "REC" offline, bright red (#e94560) while live, darker red (#8f1f1f) when live with a **private** stream (driven by the dialog's chosen `StreamVisibility`; the stream service still forces public — see TASK 4 ship step 7); the dot pulses while live, and the elapsed timer shows only when live. The connected account's avatar/name shows in the top bar next to Start Stream (`AccountAvatarUrl`/`AccountDisplayName` via `SyncConnectedAccount`), so the creator always sees WHICH account will go live.
 - ViewModels are constructed in XAML (`<vm:MainViewModel/>` as DataContext)
 - Services are currently instantiated in MainViewModel's constructor — no DI container yet
 - Layout persists to SQLite (`Microsoft.Data.Sqlite`); scenes/sources/asset bytes stored in the DB, asset identity is a SHA-256 content hash (1:M reuse, no file paths — assets are always available)