Unit 9, the one that matters most for this creator.
MASTER STRIP (top, nearest the preview):
- one ladder fed by the MEASURED mix — `AudioMixer` now measures the buffer the encoder receives
(`MasterLevel`, `MasterImbalanceDb`), so the master cannot show a source instead of the output
- `-12.4 dB` readout, and ONE L/R flag that appears above a 6 dB gap instead of a second ladder
- bitrate / FPS / dropped / duration from the existing health poll
MONO OUTPUT:
- `AudioFold.ToMono` averages each stereo pair into both channels, applied after the limiter and
the sync delay, so the stream AND the recording get what was folded
- `MonoOutput` is persisted (`Audio.MonoOutput`) and restored at startup: an accessibility switch
that resets each session is an accessibility failure
- one click in the strip, remembered forever
Guard: AudioFoldTests (hard-left reaches the right at half amplitude, hard-right — the inaudible
case — reaches the left, centred material keeps its level, mono buffers untouched) and
MasterStripTests (the strip binds the measured mix + the switch, the store round-trips it, and the
fold is the tested helper rather than new arithmetic). 33 audio tests green.
Unit 8. Re-houses the shipped TASK 22 offset in the dock:
- slider −200…+200 ms, snapping to 5 ms ticks (the existing property still clamps and persists)
- readable readout: "0 ms (aligned)" when right, signed otherwise ("+50 ms", "−120 ms")
- presets 0 / +50 / +100; 0 IS the detent — a button is easier to hit than a snap, and "the lip-sync
is right" deserves one click.
Guard: SyncBayTests pins the binding, the readout, the presets and the snapping, and that the
offset stays the persisted property (no second source of truth).
Unit 7. The bay shows the track name (left-click toggles playback, right-click opens the picker —
the label stays the control), a play/pause button, the duck badge, and a dB level.
No ladder here, deliberately: nothing measures the music bed, and a decorative ladder would break
the measured-not-painted rule. A test asserts the bay has no SegmentMeter.
The level is real: `ITraxPlayer.UserGain` is a new creator gain multiplied onto the fixed design
volume, separate from `LocalGain` (which follows the desktop mute). The VM's `TraxVolumeDb` is the
same dB scale as the other faders, so unity means the bed's design level.
Unit 6. Mirrors the mic bay for the desktop/game bed, plus the badge that matters to a creator who
cannot hear the duck: it shows while the ducker is actually attenuating, and it prints the gain the
mixer applied (−12.0 DUCK by design).
- `AudioMixer.DuckGain` exposes `AutoDucker.CurrentGain` instead of leaving it internal.
- VM: `GameVolumeDb` / `GameVolumeDbLabel` (fader face), `GameMeterFraction` (measured level),
`IsGameDucking` + `GameDuckLabel` refreshed on the level tick — the same moment the ducker runs,
so the badge cannot lag behind the mix.
- The bay: header chip + source, ladder, mute dot (uses the meter band, so mute reads at a glance),
dB readout, fader.
Guard: GameBayTests — the dock binds all four, `AutoDucker.DuckGain` is −12.04 dB and the label is
produced through the same dB scale as the faders, and the mixer property exists so the badge cannot
become a hardcoded number.
Unit 5. The dock's first working bay:
- 24-segment ladder fed by `MicMeterFraction` — the MEASURED display level (already scaled by the
volume and zeroed when muted), never the gain setting.
- Fader in dB via `MicVolumeDb` (−60 … +6, 0 = unity) with a mono-weight readout
(`MicVolumeDbLabel`), so "−6.0 dB" is what the creator reads instead of "0.50".
- Mute button whose dot uses the existing MicStatusBrush; clicking the device name opens the mic
picker, so the label stays the control (the KISS rule: one place to change the mic).
The preview's own mic row stays for now — it is removed in the final unit, after the dock bays are
complete, so nothing is lost if a bay misbehaves.
Guard: MicBayTests — the bay binds the dB face and the measured level (not the gain), the fader
range IS the scale's range, the VM surface exists, and mute still zeroes the ladder.
During a live session attention sits on the preview, so the master sound bar belongs as close to it
as possible — master row first, the four bays below. Collapsed mode is unchanged: 36px is the
master strip on its own, so it stays exactly where the eye already is.
Unit 4 of the sound-bar refactor. `Controls/AudioDock` takes the bottom row that held the empty
`BottomBar` spacer (deleted): four bay containers (MIC / GAME / TRAX / LIP-SYNC) above a 36px
master strip, all token-styled.
Height comes from `Models/AudioDockLayout`, not from a setting: 168px normally, 36px below a 900px
window height. At the 1366×768 minimum a full dock leaves ~398px for the preview, so the collapse
is mandatory, not cosmetic. The dock listens to its window's SizeChanged and re-applies.
Nothing here pretends to be a meter yet — the bays and the master readouts fill in over the next
units, each with its own test.
Guard: AudioDockLayoutTests pins both sides of the threshold (768 collapsed, 1040 expanded), the
boundary itself, and the two heights as the design's numbers.
`Controls/SegmentMeter` draws a 24-segment ladder in ONE OnRender pass — no per-segment elements
updating on the UI thread, which is the difference between a meter and a UI thread tax. Level and
peak are display fractions (what was MEASURED), never gain settings; vertical for the bay ladders,
horizontal for the master strip.
Bands come from `Helpers/MeterScale` (nominal/caution/peak, DESIGN.md thresholds) and live as
dependencies of the control, so the painting logic is pure and testable: the band a segment paints
is the level it measured. Brushes resolve from the theme tokens via SetResourceReference, so the
ladder cannot drift from DESIGN.md.
Peak-hold is the reason the header exists: a bar that follows the moment hides clipping, and
clipping is the one audio fault that cannot be fixed after the stream.
Guard: MeterScaleTests — band edges (inclusive at −12 and −3, as the standard states the ranges),
the −60…0 display scale, and peak-hold rising instantly then decaying at 0.35/s.
- EDIT leaves the centre session cluster and sits immediately right of the gear, in the brand
column — so mode lives with the controls that configure the app, not with the session buttons.
- The gear is a LlamaCasty control, so its icon is `attention` orange instead of muted grey.
Guard: UiShellTests asserts the gear fill and that EDIT appears before the centre (session)
cluster, so a later reformat cannot quietly put it back.
Creator ruling (2026-10-30):
- EDIT off + ON-AIR armed → the primary button reads "Go Live" and runs the livestream.
- EDIT on + ON-AIR armed → the same button reads "Test Stream" and runs the test broadcast.
- REC armed (or nothing armed) → "Start Recording", whatever EDIT says; there is no test
recording, and an unarmed start records locally rather than doing nothing.
So the fifth button was redundant: `ShowTestButton` no longer feeds any control. The decision is a
pure function (`Models/SessionStartDecision`) so the whole matrix is testable without a window;
`PrimaryStartCommand` follows the same kind, so label and action cannot disagree.
Guard: SessionStartDecisionTests pins the four cases, including the no-dead-ends fallback that my
first version got wrong (unarmed returned Live instead of Record — the test caught it).
Note for the v1 gate: the "hide TEST at v1" item is now satisfied by construction — the test path
is a mode of the primary button, not a separate control.
The comment I added between the two <Run> elements introduced whitespace, and whitespace between
inline Runs collapses to a rendered space: the wordmark read "LlamaCas ty". The comment moved
above the TextBlock, the Runs are contiguous, and UiShellTests asserts them adjacent so a future
edit cannot re-introduce the gap.
1. The preview's right-click handler swallowed every right-click for the zoom box, so the
element/backdrop context menu could not open at all. Sources and capture windows must be
changeable AT ANY TIME — a creator swaps a window mid-stream without entering edit mode.
Ctrl + right-click now bypasses the zoom path and lets WPF open the menu under the cursor;
plain right-click keeps the zoom box. No menu markup changed.
2. The wordmark's "ty" is YouTube red (#ff0000), permanently. The token sweep had recoloured it
to the interactive blue because it was a bare literal; DESIGN.md now records "never re-colour
the wordmark" beside the token, and UiShellTests pins it.
Guard: UiShellTests gains the wordmark rule and the Ctrl+right-click chord.
The armed state was fixed to on-accent last build, but the resting state kept on-surface-variant
(#94a3b8) — so with EDIT off, which is its normal state, the label was grey on the dark bar. The
label is white always now; only the fill changes (neutral → blue). The redundant foreground setter
is gone, and UiShellTests asserts the resting colour rather than the trigger.
The EDIT button's armed face used on-tertiary (#0b1326 navy) on blue — the creator read it as grey
on blue and could not read it. Same problem, latent, on the armed REC/ON-AIR pills, which used the
error ink.
One rule instead of two exceptions: a saturated accent fill carries WHITE ink. New token
on-accent #ffffff, used by the EDIT trigger and RecordPillToggle; on-tertiary stays for large blue
surfaces where dark ink is right. UiShellTests pins the EDIT foreground to it.
1. Stream Info + YPP rails are YouTube surfaces → new `youtube` token #ff0000. It is documented
as brand-only: live state stays `primary`, so the two reds never mean the same thing.
2. EDIT toggle: the checked trigger set the SAME colour as the resting face, so clicking it
changed nothing visible. Resting is now the neutral surface with muted text; armed is blue with
dark text, and the label follows the fill.
3. Active scene outline is orange again (`attention`) — it marks the scene you work on, not a
selection; blue made it read as "selected". Live stays red.
4. Scene names wear the same pill as the hotkey chips (black, 10px radius, 8×2 padding), so both
labels stay readable over any thumbnail.
5. REC / ON-AIR pills and the running stop button read red while armed/live — including test
mode, where the top bar is gold. New `RecordPillToggle` style (its own template, because
SegmentToggle hard-codes a transparent face); the stop button's grey `#333` literal is gone.
6. The properties list had `MaxHeight="420"` inside an Auto row, so it scrolled while the window
had space left. The row is `*` now and the cap is gone.
Guard: UiShellTests pins all six to the markup and names the one that regresses.
My own regression from the previous commit: the plate Border WRAPPED the bar's content and its
Visibility was bound to BarBackgroundEnabled — so with the plate off (the default) the preview
collapsed the entire social bar. Nothing was wrong with the data; the element was there and
invisible.
Fix: the wrapper is always laid out. "Plate off" now means a TRANSPARENT background
(`SocialBarBackgroundBrush` returns Transparent when disabled) and zero padding, "on" means the
colour/opacity plate with 18,6 padding — which also matches what the renderer bakes for the
output, so preview and broadcast agree.
Guard (new fact in SocialBarAppearanceTests): the preview must never visibility-gate the bar on
BarBackgroundEnabled, the wrapper must bind SocialBarBackgroundBrush, and the plate's switching
must be Padding.
Two bugs from the creator's first look at the new controls.
1. CRASH — '{DependencyProperty.UnsetValue}' is not a valid value for property 'Fill'.
The token conversion deleted `YtSliderKnobHoverBrush` while two slider triggers still
referenced it. WPF does not fail that at build time: it substitutes UnsetValue and throws at
the next layout, inside `Ellipse.OnRender` — so the first slider touched (the new opacity one)
killed the app. The brush is back, as a glossier version of the rest state.
Guard: `ThemeResourceTests` scans every app XAML and proves each {StaticResource} key is
defined (theme/App resources or the same file). Proven by removing the key again — the test
names it.
2. PREVIEW DID NOTHING — the preview bar is its own XAML rendering (not the rasterized strip the
compositor overlays), and it was hard-wired white-on-transparent, so the drawer's controls had
nothing to move. Now:
- `SocialBarTextBrush` / `SocialBarBackgroundBrush` come from the same `SocialBarStyle` the
renderer bakes, so preview and output cannot disagree.
- the preview draws the plate (same colour + opacity) and the drop shadow.
- the drawer applies changes to the live config as you edit (`ApplyAppearancePreview`), and
Cancel restores the pre-edit snapshot — so the preview tracks the controls without
persisting anything until Save.
46 tests green (theme, socials, design tokens, layout store, real-MainWindow meter test).
The creator (2026-10-30): the brand-logo field in App Settings showed only a file NAME, so a
myopic user could not confirm which picture was set. Now a 28x28 thumbnail sits left of the
field showing the actual image, and hovering it opens an enlarged copy (up to 420x320) beside
the panel with the file name underneath. A click collapses it; moving the pointer away closes
it, unless the pointer walked onto the popup itself, where it stays so the creator can look
closely.
Mechanics:
- `MainViewModel.BrandLogoPreviewImage` decodes the stored asset ONCE and freezes it, so the
thumbnail and the enlargement share one bitmap and no dispatcher hop is needed. A corrupt
image returns null instead of taking the dialog down.
- The thumbnail is hidden when no image is set (NotNullToVis), so there is nothing to hover and
no empty frame can appear.
- The popup is a separate window: WPF refuses to open one until its placement target is in a
live visual tree, which is why the test hosts the control in a real window rather than
asserting on a detached control.
Guard: BrandLogoPreviewTests — the wiring (image binding, the no-image gate, the four gesture
handlers, the readable enlargement size) and the control's open/close behaviour.
OverlayHost (the App Settings surface) and every dialog — Go Live, Socials, Mic picker, Camera
picker, Hotkey config, Reuse Image, Rename Recording, Keep Broadcast — now resolve from tokens.
That closes the last place the creator sees a dialog: the settings overlay was still wearing the
old palette while the main window had moved on.
Every #e94560 in these files was an ERROR or validation affordance (hotkey conflicts, socials
validation, the remove tooltip, the go-live error line) — six sites all borrowing the retired
brand red to mean "something is wrong". They are `error` now, which is what the standard says
red-adjacent means; live/record keeps `primary`.
Guard list extended to all nine files.
110 hardcoded colours gone from the preview — the biggest surface in the app. Nicknames:
- the webcam selection ring is the interactive accent (was the retired brand red)
- the mute chips are `attention` (a muted mic is a caution, not a live state) with a white play
glyph; the live badge is `primary`
- YPP progress bars/track, TRAX level zones, the error line, the dim strips and the poster veil
all resolve from tokens (`positive`, `secondary-container`, `error-container`, `scrim-dark`,
`scrim-dark-strong`)
Plus the duplication this sweep exposed: the webcam's right-click "Border Color" submenu carried
**seven hand-written colours**, a second source of truth beside the properties drop-down that
TASK 63 had already unified onto `Models/BorderColorPalette.cs` — and the two lists disagreed
(7 vs 14). The submenu is now built from the palette when it opens, so every offered colour is
the same colour everywhere, with the palette's name beside it. The click handler is unchanged;
generated rows inherit the menu's SceneElement DataContext.
Guard list extended: Controls/PreviewPane.xaml.
The palette had no green for status and no black scrim, so two surfaces were about to either
invent literals or misuse an accent. Creator's call (2026-10-30): give green a token rather
than painting "connected" blue, which already means five other things.
- `positive` #22c55e — STATUS ONLY (connected, applied, healthy). Never an accent, never a
button fill; the doc says so and the guard parses the doc.
- `scrim-dark` #26000000 (15% black) and `scrim-dark-strong` #00000080 (50%) — the preview's dim
strips and heavy overlays. 18 sites justify a token, and they are structural, not decoration.
- LeftPanel's ✓ confirm now wears `positive` instead of the interactive accent, matching the
status rule the new token states.
DesignTokensTests still green: the doc is the contract, so the three new rows demanded three
new brushes and got them.
The layers/properties panel is the surface the creator looks at most, and it carried the
largest hardcoded palette in the app: 50 label greys, 15 icon blues, and a scatter of
one-off hexes. All of it resolves from tokens now.
Three sites needed a decision rather than a mapping, because the same hex meant different things:
- the + add icon and the chat author name were the old brand red → interactive accent (blue)
- the webcam lock alert is an ERROR, not decoration → error surface + error border
- the ✕ revert affordance was red, which the standard reserves for live/record → muted. ✓ stays
a positive confirm, now in the interactive accent rather than a green that exists nowhere else
in the palette. If green checks are missed, a `positive` token is the way back, not a literal.
- Super Chat gold was #eab308; it is the standard's amber now (game audio + Super Chat only).
Guard list extended: Controls/LeftPanel.xaml can no longer regress to a raw colour.
- Telemetry readouts (bitrate, FPS, dropped, live duration) now wear JetBrains Mono, so the
tabular digits stop shifting width as values change — the first place the bundled mono face
is actually visible.
- Scene tiles: staged = blue (selection), live/program = red. Both were orange, which meant the
same colour marked two different states and neither was the live colour.
- EDIT toggle: "on" is the interactive accent, not orange. Orange now means warning only.
- Wordmark's two-tone accent, avatar chrome, readout panel, tile borders and the program badge
all resolve from tokens.
Guard list extended: MainWindow.xaml, Controls/TopBar.xaml, Controls/SceneThumbnailStrip.xaml —
these three can no longer regress to a hardcoded colour.
- Source.IsBrandLogo persisted (additive migration); layer healed on load, removal blocked
- Image stored as an asset; settings keep the asset id and file name
- App Settings: Brand Logo file field with Browse
- Default placement top-left; per-scene eye uses the existing element visibility
Test: BrandLogoTests; layout/background tests pass (34). Not pushed.
- Socials: the dialog is a right-rail drawer (same pattern as Stream Info/YPP/TEST); the live-screen button is removed
- Right rail: Stream Info (was Stream Settings) and YPP show the YouTube logo; Socials and TEST get icons; tab colors and label colors per spec
- Top bar: EDIT toggle beside REC (orange when on, blue when off); going live on YouTube turns it off
- Stream readouts (bitrate, FPS, dropped n (x.y%), Live hh:mm:ss, health) and the resolution dropdown moved to the top-left cell; bottom bar emptied at the same height
- Webcam border drawing restored (it was removed with the CRT bezel change)
- YouTube chat layer: border color, thickness, and opacity controls
- Vertical 1080p30 tier added
Not related to the fps gate yet; no gating is enforced.
- TopBar: EDIT ToggleButton, spaced from the REC/ON-AIR segments
- MainViewModel: explicit EditingActive drives IsEditMode; YouTube go-live turns edit off, stop turns it on
- SceneThumbnailStrip: tiles fixed 196x130 and centered; dark background fills the column so its edge does not move on resize; strip row fixed 154px
- MainWindow: left column fixed at 360px; WIDTHS diagnostic log on resize
Not pushed.
- LeftPanel: SCENE LAYERS header with layer count; per-type blue icons; properties header gear; layers list min/max height; properties placeholder; list and properties indent
- SceneThumbnailStrip: names/hotkeys over the tile; PROGRAM badge with blinking red dot on the selected tile; orange border on selected and live tiles; fixed the element border override that hid the style border; reflag tiles on load
- LiveScene is now set on go-live, record start, and live transitions (it was never assigned, so IsLive never fired)
- Startup stages the scene named Starting
- DESIGN.md: color roles (red = YouTube/on-air/record, orange #ff8c3a = attention, amber = game audio/Super Chat)
- Staged live tile uses background art instead of the green LIVE placeholder
Not pushed.
- PreviewPane.xaml: drop the OBS-style border Rectangle/Ellipse over webcam elements
- SceneThumbnailStrip: Viewbox scales the row; height follows width so it fills the preview column; staged+live tile has no border
- MainWindow.xaml: strip moved to column 1 only, leaving the layers cell empty; Margin 8,0 matches the preview
- MainViewModel.Background: stop seeding the CRT scene tiles and the on-air image
- ytLive.csproj: per-build counter (BuildCounter.txt, gitignored) replaces the commit-count stamp
Build stamp now increments on every build.
The creator (2026-10-21), on Live -> Layers -> webcam -> Properties:
"why does the drop down under the web cam properties not show the same style for
the border color drop down list box?"
"one of the first things we did was define branding. We established look-and-feel
standards. And yet you keep ignoring these and I'm wondering why"
WHY IT WAS MISSED - the answer the creator is owed.
The TASK 58 sweep had already walked the whole app for un-themed controls and the
border picker STILL was not themed, because the sweep looked for control TYPES
(ComboBox / CheckBox / TextBox) carrying no theme style - and the border picker was
NONE of those. It was a "..." Button whose Click handler built a ContextMenu of
swatches in code. It was never in the sweep's scope, and PropertiesStyleTests.cs
(a type-based guard) could not see it either. A picker that LOOKS like a drop-down
is invisible to a type-based audit; the guard has to ask "is this the app's widget?".
WHAT CHANGED
- The picker is now the app's YtComboBox - the widget the Display and Font pickers
wear - bound to the palette (SelectedElement.BorderColorOptions) with its selection
bound by VALUE (SelectedItem -> BorderColorEntry), because WPF's SelectedValue
matching is ordinal and the palette mixes #FFFFFF and #e94560.
- The closed box shows the swatch + the colour's NAME; the rows show swatch + hex +
name (the rows the creator approved in TASK 60). A ComboBox cannot do that with one
ItemTemplate - WPF copies it into the read-only SelectionBoxItemTemplate - so
Helpers/ClosedBoxTemplateSelector.cs picks by the ContentPresenter's templated
parent: the ComboBox for the closed box, the ComboBoxItem for a row. Verified
against WPF with a throwaway probe, not assumed.
- The swatch is painted by the THEME (Helpers/HexToBrushConverter.cs, registered as
HexToBrush) - the hand-painted SolidColorBrush(Color.FromRgb(...)) in the old
click handler was the exact anti-pattern the theme forbids. The swatch also carries
a 1px #2a3a5e border now, so black and dark swatches are visible on the dark menu
(the follow-up TASK 60 left open).
- The hex field stays (60px, editable): a colour outside the palette can still be
typed, and the drop-down then carries that hex as a NAMELESS entry ("no name" is the
honest answer). The palette's name moved out of TASK 62's TextBlock into the
drop-down's closed box.
- The hand-built menu, its ContextMenu/MenuItem/SolidColorBrush code and
WebcamBorderColorPicker_Click are gone.
MODEL: SceneElement.BorderColorName -> BorderColorEntry (the palette entry for the
current hex, with its name; setting it writes the hex back) + BorderColorOptions (the
palette plus the custom entry), both raised when BorderColor changes.
BorderColorPalette gains EntryFor(hex) and OptionsFor(hex); NameOf delegates.
Guards: ytLive.Tests/BorderColorPickerTests.cs (the ONE test for this change - the
model, the panel, and the REAL widget: with the app's theme style and the panel's own
templates the closed box names the colour and the rows show the hex AND the name).
The TASK 60 guard (BorderColorPaletteTests) was updated because the mechanism it
asserted - a code-built menu - no longer exists; it now guards the new wiring (the
drop-down is bound to the palette and neither the panel nor the code-behind carries a
second list of colours).
Full suite: 435/435 passed, 0 warnings.
The creator (2026-10-21), on Live -> Layers -> webcam -> Properties:
"the Y and H boxes under webcam properties should be the same width as the X and W
boxes and those widths should be fixed to accomodate the max number of possible
digits providing the geometry values"
"also the border color drop drown box content should also include the name of the
color next to the hex value as they in the drop-down list box"
TASK 61 - one fixed width for the four geometry fields.
The row is a DockPanel, and WPF sizes an element to its CONTENT unless it is told
otherwise, while the LAST child of a DockPanel fills the remaining space. So X/W (not
last) were as wide as their text and Y/H (last) stretched across the row - two widths
for the same kind of field. Now all four carry Width="44" and the rows set
LastChildFill="False" (without it the last field ignores its own Width and fills anyway).
44px is the measured width of "-1920" in the app's font at 11px (the largest geometry
value - the master frame is 1920x1080 - plus a sign) plus the field's padding and
border. Docs: https://learn.microsoft.com/en-us/dotnet/api/system.windows.controls.dockpanel.lastchildfill
The guard MEASURES the widest value with WPF's FormattedText instead of asserting a
magic number, so a font change cannot silently make the field too narrow:
https://learn.microsoft.com/en-us/dotnet/api/system.windows.media.formattedtext
TASK 62 - the border field names its colour.
SceneElement.BorderColorName carries the palette's name for the current colour
("Crimson") and is raised when the colour changes; it is EMPTY for a custom hex the
creator typed, because "no name" is the honest answer. BorderColorPalette.NameOf
changed to match (it used to fall back to the hex itself; the TASK 60 test assertion
was updated with it). The hex field keeps a fixed width (60) so the name sits right
next to the hex instead of drifting to the row's far edge - the same trap as TASK 61.
Guards: ytLive.Tests/GeometryFieldWidthTests.cs, ytLive.Tests/BorderColorNameTests.cs
Full suite: 435/435 passed, 0 warnings.
The creator: "under Live->Layers->webcam->Properties->border color: in the drop
down box, the #hex values are good, but add a corresponding color name/label next
to the value."
Each row now reads "#e94560 Crimson" - the hex stays exactly as it was, the
colour's name goes next to it (dimmed #a0a0b0 so the hex reads first), and the
tooltip becomes "Crimson (#e94560)".
The 14 colours were a hard-coded string[] inside the click handler - a list of
bare strings cannot carry a name, and a list hidden in UI code cannot be asserted
on. They now live in Models/BorderColorPalette.cs: NamedColor(Hex, Name) +
BorderColorPalette.All (the single source of truth) + NameOf(hex), which answers
case-insensitively and falls back to the hex for a colour outside the palette.
The picker builds its menu from the catalogue and no longer knows any colour by
heart.
The names are chosen not to collide - the palette has two greens, two blues and
two warm colours: #00FF00 is Lime and #22c55e Emerald, #0000FF is Blue and
#3b82f6 Azure, #FF8800 is Orange and #f59e0b Amber.
Guard: ytLive.Tests/BorderColorPaletteTests.cs - every entry valid + named, no
hex or name repeated, the 14 legacy colours all still offered, NameOf answers,
and the old list is gone from the handler. 433/433 green, 0 warnings.
The creator's ruling on the webcam's properties: a "Shape" title above the
Mirror/Rect row; the drag hint indented under that row "to show parentage";
the same for Geometry, Border Color, Border Thickness; Remove and Blur indented
under Background; Strength indented under Blur.
One rule covers it: a title owns its content and the content is indented one
level (10px) under it - two levels where a title is itself nested (Strength
under Blur under Background). The titles are SemiBold 11px #a0a0b0 like the
ones already there.
The shape also stops being a toggle button that shows the NEXT action ("Round"
when the camera was a rectangle) and becomes a CHOICE: two segment options,
Rect | Circle, with Rect selected by default - which is what the creator asked
for ("Rect should be selected as a default if none exists"). The old
ShapeButtonText is gone.
The mutual exclusion lives in the MODEL: IsRectShape/IsRoundShape on
SceneElement, each setter flipping the shape through ToggleClipShape() (so the
pre-round rect is still stored/restored) and always re-raising, so a refused
write - the vertical Chat layout is rect-only (TASK 57) - makes the UI snap
back instead of sticking. Deliberately NOT a WPF RadioButton group: a group
unchecks its siblings by setting IsChecked in code, which makes WPF drop the
binding (stackoverflow 7376373; the same trap measured in 50980687/57275046).
The Circle option stays hidden where CanToggleClipShape is false, so the circle
is still not offered in the vertical Chat layout.
Guard: ytLive.Tests/PropertiesHierarchyTests.cs - the model half (Rect by
default, pick circle, pick rect, the locked Chat layout refuses the circle) and
the panel half (the Shape title owns both options, the circle is the gated one,
the hint is indented and follows the row, every titled block's content is at
10px, Strength at 20px). 432/432 green, 0 warnings.
The creator asked why the Stream Alerts "Display" drop-down was not in the same
style as the other drop-downs. It was never given the theme's YtComboBox style -
only a hand-painted Background/Foreground. Setting colours changes the paint, not
the template, so WPF still drew the light system ComboBox (grey border, system
arrow, white popup list) on top of the dark panel. The chat Font drop-down was a
copy of the same mistake, and every check box was the light system one.
The sweep of the whole properties panel (then the app):
- ComboBox x2 (chat Font, alert Display) -> YtComboBox, hand-painted colours gone
- TextBox x16 in the properties panel -> YtTextBoxCompact (new, BasedOn YtTextBox:
11px / padding 4,2 - the panel is dense, the full 13px box would double it)
- CheckBox x2 (chat) + x3 (preview broadcast) + x1 (socials dialog) -> YtCheckBox
(new: a 14x14 rounded box + tick path, accent fill when checked)
- the layer-rename field -> YtTextBoxCompact via BasedOn, still borderless
- buttons, pills, sliders: already themed, untouched
The sweep also killed a typo'd foreground (#e0d0e0 for #e0e0e0) and the only
remaining hand-painted colour is the deliberate dimming of the two read-only path
fields.
Guard: ytLive.Tests/PropertiesStyleTests.cs (the ONE Good Dog test) parses the app
XAML and fails if an unstyled drop-down, check box or properties field comes back.
431/431 green, 0 warnings.
The creator's locked table (2026-10-17) gives the Chat scene its own rules in
the 9:16 tier: RECT ONLY - the circle option is not offered - and a size that
is either the normal small tile or ENLARGED to fill one whole 607x540 area
(top or bottom). Unit 1 shipped the per-scene placement; this unit is the Chat
scene's own variant of it.
The rule lives on the MODEL, not on the button:
- Models/SceneElement.cs: ClipShape and ToggleClipShape() are now virtual.
- Models/WebcamSceneConfig.cs: VerticalShapeLocked (set per scene by the VM)
OVERRIDES the ClipShape property, so no writer can slip a circle in - the
toggle, the Shape button and the placement swap all go through it. The lock
is cleared BEFORE the 16:9 layout comes back, so the desktop shape returns.
- ViewModels/MainViewModel.Webcam.cs: CanToggleClipShape (the circle is NOT
offered in the vertical Chat layout - the Shape button disappears, it is not
merely greyed out), IsChatSceneCamera, ResizeWebcamInVerticalTier.
- Models/VerticalCameraLayout.cs: FillsArea (the "enlarged" state, derived -
no new column) and SizeFor - the Chat camera's TWO sizes, the tile or the
whole area, whichever is nearer the requested width, so the resize handle
has two detents instead of any size in between.
- An enlarged camera FILLS the area its centre is in (top or bottom), so
dragging it up/down swaps the areas.
- The Chat camera is auto-tiled like the Live one when the vertical tier is
picked - otherwise the vertical chat stream has no camera at all.
- Controls/PreviewPane.xaml.cs: the resize routes through the VM; the drag
assigns, lets the model clamp into the band, then snaps (so the enlarged
camera can be dragged from the top area to the bottom one).
Test: ytLive.Tests/VerticalChatCameraLayoutTests.cs - the ONE Good Dog test for
the unit: the vertical tier is picked -> the Chat camera comes into the band as
a small RECT tile -> the circle option is not offered and cannot be set even on
the model -> dragged up and enlarged it fills the TOP area exactly -> back to
16:9 the desktop layout is restored exactly and the circle option is offered
again. 430/430 tests pass, 0 warnings.
Research (the creator's table is the established practice, not our invention):
- Streamlabs' vertical guide: "splitting the screen in half horizontally,
placing the camera feed in the top half and the main content on the bottom
(or vice versa) may be the bet", and a just-chatting vertical wants the
camera "to take up most of the screen"
(streamlabs.com/content-hub/post/overlays-vertical-and-horizontal-streaming)
- Bloopbot's vertical overlay docs describe the same per-layer model we use at
scene granularity: "move or resize a layer on Vertical and it stops being
Auto-placed. It keeps the place you gave it, and the horizontal layout is not
touched" (bloopbot.com/docs/vertical-overlays-twitch-dual-format) - our
swap-at-tier-change, stored per scene.
- Landmine recorded: "about the bottom 560 px of the vertical video can be
covered by Twitch's chat and player controls on phones" (Bloopbot) - the Chat
camera's enlarged BOTTOM area may be half-hidden by the platform chrome;
TASK 53's safe-zone work decides that.
Memory in the same commit: ai.md (the Chat rules, the shape lock, the tests),
TASKS.md + TASKS/task-57-vertical-camera-layout.md (TASK 57 complete), HANDOFF.md,
MyMistakes.md (3 recipes: lock the model property not the UI button; two detents
for a discrete size set; the edit tool cannot match an oldString with an em
dash), Models/ViewModels/Controls index rows.
The vertical tier is a centred band crop of the SAME 1920x1080 master (band x
656.25, w 607.5, h 1080), so the 16:9 camera placement (x~1408) falls outside the
cropped window and the creator is simply not in the vertical stream. Each scene
now keeps its own vertical position, size and shape; switching back to 16:9
restores the desktop layout exactly (the creator's locked table, 2026-10-17).
Geometry only - NO render-path change. The preview and the compositor both read
the element's own X/Y/W/H + ClipShape, so the tier switch swaps the LIVE geometry:
- Models/VerticalCameraLayout.cs (new): the pure math - the band, its two 607x540
areas, the six spots (top/bottom x left/centre/right), the 32px inset and the
270x152 default tile (480x270 in the 1080x1920 output) in the bottom-right spot,
the corner the 16:9 default webcam uses.
- Models/WebcamSceneConfig.cs: the vertical placement lives in seven additive
columns (VerticalX/Y/Width/Height/ClipShape/RectWidth/RectHeight; NULL = "this
scene has no vertical placement yet"). The 16:9 layout stays in the old columns
and is parked in the transient Landscape* fields while the vertical tier is
live; Begin/EndVerticalLayout + CommitLiveLayoutToVertical do the swap. The
X/Y/W/H overrides clamp every write into the band - outside it the camera is
invisible in the vertical output.
- Models/SceneElement.cs: X/Y/Width/Height became virtual so the derived element
constrains every writer (drag, resize handle, typed fields) in ONE choke point
instead of three writers each re-implementing the rule.
- ViewModels/MainViewModel.Webcam.cs + .Streaming.cs: IsVerticalTier/VerticalBand,
ResolveVerticalCameraLayout(s) (the tier swap), MoveWebcamInVerticalTier /
SnapWebcamInVerticalTier (the six-spot snap, by the tile's centre),
EnsureVerticalCameraLayout; ApplyStreamQuality is the tier-change hook. The
Live scene gets its small tile automatically on the first vertical switch (the
vertical stream would otherwise have no camera at all); the other scenes keep
their 16:9 placement until the creator drags them into the band.
- Controls/PreviewPane.xaml.cs: the drag/resize route through the VM snap under
the vertical tier instead of free-floating over the master.
Controls/LeftPanel.xaml: the webcam properties gained a Geometry section
(X/Y/W/H) for the manual entry the creator asked for, bound to the LIVE
placement, gated on the VM's IsWebcamSelected (NOT SelectedElement.IsWebcam -
the TASK 51 test finds that panel by binding text and would match twice).
- The store: seven guarded ADD COLUMNs, the INSERT/SELECT extended, and the
X/Y/W/H/ClipShape columns stay the 16:9 layout - while the vertical tier is
live the save writes the parked values there and the live ones into Vertical*.
Test: ytLive.Tests/VerticalWebcamLayoutTests.cs - the ONE Good Dog test. The
vertical tier brings the Live camera INTO the band as a small tile; dragging it to
the top-right lands it top-right inside the band; back to 16:9 the desktop layout
is restored exactly (1408/778/480x270); both placements survive a save + reload.
Full suite 429/429, 0 warnings. LayerReorderPersistenceTests.RealMouseDrag fails
ALONE on a clean tree in this environment - pre-existing flake, proven by stashing
this work, not a regression.
Derivative work: OBS has no built-in per-aspect-ratio layout storage - the
maintainers' answer is "create a second scene and add the scene you want to send
as source" (obsproject.com/forum/threads/161307) - and Streamyard's dual-aspect
guide says the same ("no built-in way to store separate layouts per aspect ratio",
so you rely on manual workarounds and plugins):
https://streamyard.com/blog/dual-aspect-ratio-streaming-tool
Our per-scene, per-tier stored placement, resolved on the tier change, is the
step past both.
Memory in the same commit: ai.md (new section), TASKS.md + TASKS/task-57-*.md
(Unit 1 shipped, Unit 2 = the Chat scene still open), HANDOFF.md, MyMistakes.md
(the per-tier geometry-swap recipe, the binding-text panel trap, the store's
webcam-identity rule) and the Models/Services/ViewModels/Controls index rows.
Creator's final zoom correction: as the box is dragged, its capture region slides
under the dim rectangles and the box picks up the 55% black "div shading" inside
itself, because the VisualBrush samples the whole CanvasGrid and DimRects lived
inside CanvasGrid. The captured area must stay clear regardless of box position.
- PreviewPane.xaml: the DimRects ItemsControl is now a SIBLING of CanvasGrid
(above the composed content, below the ZoomBox), never a descendant — the zoom
source is shading-free by construction.
- ZoomBoxInteractionTests: structural invariant — DimRectsLayer is a direct
child of PreviewCanvas (not inside CanvasGrid) and renders below the ZoomBox.
- Side effect (correctness, not a bug): quality dims now also sedate the global
overlays outside the crop, matching "chrome outside the crop is dimmed".
Creator corrected the "loupe" zoom on 2026-10-08: the click anchors a fixed
capture region (box/2 centred on the click) and the box is a live 2x view of
that region — dragging the box never changes its content; it magnifies the
fully-composited frame (every layer, incl. webcam) and draws LAST (n+1).
Rectangle shape is 4:3 ("more of a 640x480 aspect").
- MainViewModel.Zoom.cs rewritten: ActivateZoom anchors CaptureX/CaptureY
(independently clamped); UpdateZoomMove relocates the box only; the per-frame
BuildZoomFrame/ZoomFrameBuilder path is gone.
- SceneCompositor: skips the active ZoomSceneElement in every layer loop and
BlitZooms it last via the new pure ZoomMagnifier (2x bilinear, temp snapshot
via ArrayPool, round clip).
- Preview: ZoomBox hoisted above CanvasGrid as a sibling; its brush samples the
whole composed preview at the fixed capture (2x).
- Tests: ZoomMagnifierTests (box-over-blue shows green capture at 2x incl. an
extra red "layer" — the loupe/backdrop-only regressions both fail it) +
round-clip; ZoomBoxInteractionTests rewritten (anchored capture, move-doesn't-
change-capture, 4:3/9:16/square). 404 pass, 2 known environment flakes.
Right-click now creates a transient ZoomSceneElement at z-index 1 whose pixels are a
genuine 2x magnified sample of the backdrop (live capture under art), composited into
stream/recording like any layer while the output crop stays the tier. All shapes are
centered on the click and clamped to frame; healed on load/scene-create, never persisted,
hidden from the layers list + element template (IsZoomLayer). BuildCompositorOptions is
now internal = always tier crop (test seam). ZoomFrameBuilder is a pure static sampler
(box/2 window centered on the box center, single-slot cache) proven by a banded-backdrop
test; LayerReorderPersistenceTests drag resolves rows by item since the collapsed zoom
row shifts container indices. Also books TASK 51 (webcam background Remove + Blur) and
syncs memory docs (HANDOFF, MyMistakes, indexes). Full suite: 405 passed, 0 warnings.
Right-click in the live preview now procs a box that is actually visible and
populated with the zoomed region, and each Zoom View Shape sculpts the box per
spec. OBS-style derivative: magnifier box shows the composited region and dims
the surroundings (same pattern as OBS "zoom" / preview region highlights).
Root causes of the invisible box (two WPF traps, recorded in MyMistakes.md):
- Empty <VisualBrush Stretch="None"/> used as an OpacityMask paints nothing,
so the mask alpha is 0 and the WHOLE box (border included) went transparent.
- ZoomBox lived inside CanvasGrid while its VisualBrush sampled CanvasGrid — a
circular reference WPF renders as nothing. Hoisted ZoomBox to a sibling of
CanvasGrid inside a new PreviewCanvas wrapper (same 1920x1080 space).
Shape semantics (MainViewModel.ActivateZoom):
- Circle: square, click point = center.
- VerticalRectangle (phone): tall 9:16, click point = top-left corner.
- HorizontalRectangle (tablet): wide 16:9, click point = top-left corner.
- Boxes stay fully inside 1920x1080 via Math.Clamp.
UI: ZoomRectOutline/ZoomCircleOutline shapes replace the square Border;
circle clips the box to an EllipseGeometry; brush Visual released when inactive.
Zoom View Shape dropdown now uses the standard YtComboBox style.
Test (Good Dog rule, one integration test): ZoomBoxInteractionTests verifies
aspect/anchoring/clamp per shape and the matching outline+clip in the real
MainWindow. Full suite 404 passed, 0 warnings.
Memory: HANDOFF.md zoom state updated; WPF VisualBrush traps appended to
MyMistakes.md.
Creator 2026-09-26: "the ticker should appear over the stream alerts video, not over
the entire preview window". It was a GLOBAL 1920x48 bar blitted last at a hardcoded
(0, 0) -- it covered the whole preview width, not the alert video.
The strip is now rendered at the alert box's own size and the box's origin travels on
the frame in a new VideoFrame.Placement ((int X, int Y)?). OriginX/OriginY default to
0 when Placement is null, so every full-canvas overlay (the branding flash) is
unaffected. Every ticker blit site now reads tickerFrame.OriginX/OriginY instead of a
literal 0, 0 -- SceneCompositor x2 and FramePump's static-bake Overlay path -- and
PreviewPane.xaml's AlertTickerElement binds the same rect (AlertTickerLeft/Top/
Width/Height), so the preview cannot drift from the recording the creator is judging.
Why the position rides on the frame rather than in a full-canvas frame: a 1920x1080
overlay is 8.3MB of large-object-heap garbage per tick, ~2.5GB churned over one 10s
alert at 30fps. A box-sized strip is ~370KB. The branding flash does render
full-canvas but RECYCLES one 8MB buffer and bumps Epoch, so it never allocates per
frame; the ticker allocates per call, so it has to stay small.
Also fixed: CopyStrip now clips ROWS to the target height. The pill rasterises at its
natural 48px, so an alert box shorter than that would have written past the end of the
target buffer once the strip became box-sized.
No alert box in the scene now means no ticker at all -- there is no global position
left for it, and this is the guard against the old bar quietly coming back.
Tests (3 new facts, 27 in the file):
ComposedOutput_PutsTheTickerInsideTheAlertBox_NotAtTheTopEdge -- renders through
the real SceneCompositor and asserts the pixels land at (620, 430) and NOT at the
top-left corner. The creator is judging compositing from local recordings, so the
OUTPUT side is the side that needed proving.
ASceneWithNoAlertBox_PublishesNoTicker
ABoxShorterThanTheStrip_ClipsRowsInsteadOfOverrunning
Updated AlertLayer_PublishesARealTickerFrameToThePreviewSink, which asserted the old
1920 width from a box with no geometry (defaulted to 1px); it now uses the product's
own default box (680x200 at 620,430, MainViewModel.Sources.cs:54-57) and pins the
frame size and origin.
Full suite 367/367.
gramps