gramps
4ef84f2a97
The theme file that every control inherits is now token-driven: 73 hardcoded colours became Brush.* references, and the two role changes the standard requires landed here first. - Red leaves the chrome. The seven #e94560 sites (base button, focus borders, checked box and segment backgrounds, the selected-layer accent strip) were all interactive/selection roles, so they are blue now. Red stays for live/record only. - The slider was green: its fill and gloss knob are blue now, with the track on SurfaceContainerLowest. The old green fill predated the standard. - The pill toggle was ON = green, OFF = red — a settings control using the live colour. It is now OFF = neutral surface, ON = blue. - Added scrim-soft/scrim-strong tokens (#22FFFFFF/#26FFFFFF) for the existing white washes, and Color.* resources for the two gradients (a GradientStop needs a Color, not a Brush). Guard: DesignTokensTests gains Converted_surfaces_carry_no_raw_colour — a declared list of converted files, so each sweep commit is guarded as it lands instead of waiting for one global grep at the end. Pure white/black highlights are the only allowed literals. No layout, spacing or behaviour change: this unit is colour only.
184 lines
9.2 KiB
Markdown
184 lines
9.2 KiB
Markdown
# DESIGN.md — LlamaCasty visual design standard
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> **Status: the standard** (decided 2026-10-30). Token values here are normative;
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> `Themes/Tokens.xaml` is the implementation, and no other file may hardcode a hex once the sweep
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> lands. Two Google Stitch exports feed it (2026-10-26 edit screen, 2026-10-29 audio dock).
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>
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> **The exports' layouts and control drawings are exploratory, not spec.** The dock, the four
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> bays, the page-nav sidebar and the skeuomorphic faders are *not* adopted — the product's design
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> principle is a surface so obvious that a right-brained person can use it without a manual, and
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> hardware cosplay is the opposite of that. Only the colour, type, spacing, radius and elevation
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> system is adopted.
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## Colour
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### Surfaces (dark navy scale, darkest to lightest)
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| Token | Hex | Use |
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|---|---|---|
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| `background` | `#0b1326` | App window background |
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| `surface-container-lowest` | `#060e20` | Deepest recess (scene strip background, canvas housing) |
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| `surface-container-low` | `#131b2e` | Panel background (sidebars, headers) |
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| `surface-container` | `#171f33` | Card / grouped-section background |
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| `surface-container-high` | `#222a3d` | Hover state, input fields |
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| `surface-container-highest` | `#2d3449` | Selected/active row background |
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| `surface-bright` | `#31394d` | Lightest surface, rare use (strong hover) |
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| `outline` | `#334155` | Borders, dividers |
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| `outline-variant` | `#1e293b` | Subtle dividers, inactive meter segments |
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| `scrim-soft` | `#22FFFFFF` | Hover/press wash over a surface (13% white) |
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| `scrim-strong` | `#26FFFFFF` | Stronger wash — selected icon, dimmed image (15% white) |
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### Text
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| Token | Hex | Use |
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|---|---|---|
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| `on-surface` | `#dae2fd` | Primary text |
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| `on-surface-variant` | `#94a3b8` | Secondary / label text |
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| `on-surface-disabled` | `#5b6478` | Disabled text and icons |
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### Accent — one role each, never mixed
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| Token | Hex | Role |
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|---|---|---|
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| `tertiary` (electric blue) | `#38bdf8` | **The** interactive accent: selection, focus, sliders, primary buttons, transform handles |
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| `on-tertiary` | `#0b1326` | Text/icon on a blue fill |
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| `primary` (red) | `#ff5451` | **On-air / recording only** — LIVE badge, program border, End/Go Live |
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| `primary-container` | `#b91a24` | Red pressed/hover state |
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| `secondary` (amber) | `#ffb95f` | Game audio channel, Super Chat highlight |
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| `secondary-container` | `#ee9800` | Amber pressed/hover state |
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| `attention` (orange) | `#ff8c3a` | Dropped frames, the live-screen indicator, blinking warnings |
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| `error` | `#ef4444` | Error text and icons |
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| `error-container` | `#93000a` | Error surface (health banner, toast) — keeps error visually distinct from on-air red |
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| `on-error` | `#ffdad6` | Text on an error surface |
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**The rule:** red means "live or recording" and nothing else. Never a Send button, a delete action,
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a brand flourish, or a general accent — that was the defect in the first Stitch draft.
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**`#e94560` is retired** as the app's general accent (it was in 15 files). Blue takes over every
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interactive role; red keeps only live/record. The brand/wordmark *artwork* is unchanged — those
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assets are the creator's art, not a theme value.
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### Meter thresholds (both meters, all bays)
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| Band | Range | Brush |
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|---|---|---|
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| Nominal | −∞ … −12 dB | `#38bdf8` |
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| Caution | −12 … −3 dB | `#ffb95f` |
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| Peak / clip | −3 … 0 dB+ | `#ff5451` |
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Meters are **measured, never decorative** (see `docs/ai/output.md`): the ladder shows the live
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level scaled by the current gain, not the gain setting.
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## Typography
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| Token | Family | Use |
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|---|---|---|
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| `sans` | Inter (400/500/600/700) | All UI text — labels, buttons, panel titles |
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| `mono` | JetBrains Mono (500/600) | Numeric/telemetry values — bitrate, FPS, dB, coordinates, timers. Tabular figures stop digits shifting width as values change |
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Icons: Material Symbols Outlined (bundled, not fetched).
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### Scale
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| Token | Size / line | Weight | Tracking | Use |
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|---|---|---|---|---|
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| `headline-lg` | 32 / 40 | 700 | −0.02em | Landing/empty-state titles only |
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| `headline-md` | 24 / 32 | 600 | −0.015em | Dialog titles |
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| `headline-sm` | 18 / 24 | 600 | −0.01em | Panel and section headers |
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| `body-lg` | 15 / 22 | 400 | — | Default body, chat |
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| `body-md` | 13 / 18 | 400 | — | Panel rows, form text |
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| `body-sm` | 12 / 16 | 400 | — | Secondary text, hints |
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| `label-lg` | 13 / 16 | 600 | 0.02em | `mono` — primary telemetry values |
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| `label-md` | 11 / 14 | 500 | 0.04em | `mono` — labels, hotkey chips |
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| `label-sm` | 10 / 12 | 500 | 0.05em | `mono` — dense telemetry only |
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**Floors and implementation notes**
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- **11px is the default label size; 10px is the absolute floor** and only for dense readouts that
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sit beside a larger value. Nothing readable at 100% zoom may be smaller than 10px.
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- **WPF has no letter-spacing.** Tracking values above are design intent, not a property; implement
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as-is (no tracking) rather than faking it with padded strings.
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- Mono numerics use `Typography.NumeralAlignment="Tabular"` so widths stay stable.
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## Spacing
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| Token | px | Use |
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|---|---|---|
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| `space-xs` | 4 | Inside a chip, icon-to-text |
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| `space-sm` | 8 | Between related controls |
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| `space-md` | 12 | Default gap inside a panel |
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| `space-lg` | 16 | Panel padding, section separation |
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| `space-xl` | 24 | Dialog padding, major separation |
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| `gutter` | 12 | Between page columns |
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| `margin` | 16 | Window edge to content |
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| `margin-docked` | 8 | Edge to content when a rail/drawer is docked |
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## Shape
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| Token | px | Use |
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| `radius-sm` | 4 | Chips, badges, keycap tags |
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| `radius-md` | 8 | Buttons, inputs, cards, scene tiles |
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| `radius-lg` | 16 | Preview viewport, drawers, dialogs |
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| `radius-full` | pill | Status chips (LIVE, EDIT), toggles |
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Recessed controls (fader wells, inputs) use the same outer radius as their housing so the seams
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line up — do not mix a 4px well inside an 8px card.
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## Elevation
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| Level | Use | Implementation |
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|---|---|---|
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| −1 recessed | Fader wells, input fields, table headers | inset top shadow + `surface-container-lowest` |
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| 0 panel | The default chassis | `surface-container*` + **1px `outline` border**, no shadow |
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| 1 raised | Scene tiles, floating chips, action buttons | subtle drop shadow, 0 1px 2px |
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| 2 floating | Drawers, popups, dialogs | larger spread + 1px top highlight |
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**Budget rule:** `DropShadowEffect` is software-rendered in WPF. Shadows on small controls only —
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**never** on the preview viewport, the scene strip, or either wing. Depth on large surfaces comes
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from the surface scale and the 1px border, not from effects.
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## Interaction
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- Focus ring: 1px `#38bdf8` outside a 1px gap — visible against every surface level.
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- Hover: step one surface level up; active: step two. No colour change on hover except for
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destructive actions.
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- Motion: 150ms `CubicEase(EaseOut)` for drawers/popovers; 90ms for hover/press. No springs —
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WPF has no spring easing and hand-rolled overshoot reads as jank at 60Hz.
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- Every action produces a visible outcome. No dead ends, no silent failures.
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## Not in this standard
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- The audio dock, its four bays, per-bay faders, 24-segment ladders, transport controls, lip-sync
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slider and master telemetry strip — **exploratory**. The controls they re-house already exist in
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the app; whether any of them gets a dock is a separate product decision.
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- The page-nav sidebar (Broadcast Studio / Audio Mixer / Scene Matrix / Telemetry / Hotkeys) — the
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app is one surface with an EDIT toggle and drawers, not a page router.
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- CPU / GPU / NVENC readouts — no telemetry exists, and none of it changes a live decision.
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- Acrylic/backdrop blur — WPF has no sub-region backdrop blur; panels are solid.
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- **On-stream output** (chat box, social bar, alerts, brand flash) is styled by its own renderers,
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not by this theme. Do not apply UI tokens to the broadcast picture.
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## Rejected from the 2026-10-29 export
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The export is a Material-3 dump from a warm seed; four tokens came out tinted by that seed and are
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rejected in favour of the values above.
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| Export value | Token | Why rejected |
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|---|---|---|
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| `#4cd7f6` | `tertiary` | Neon cyan beside the amber reads "toy"; `#38bdf8` is calmer and already used in-app |
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| `#ab8986` | `outline` | Warm pink borders from the seed — wrong for a navy chassis |
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| `#5b403e` | `outline-variant` | Same seed artifact |
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| `#e4beba` | `on-surface-variant` | Pink secondary text; slate `#94a3b8` is legible and neutral |
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## Implementation status
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- **`Themes/Tokens.xaml` exists and is merged first in `App.xaml`** (2026-10-30). Guard:
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`ytLive.Tests/DesignTokensTests.cs` — it parses this document and fails if a documented token has
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no brush, if a value disagrees, or if the retired `#e94560` returns as a token.
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- **Still to sweep:** `Themes/Controls.xaml` and the dozens of hardcoded hexes in XAML/C# still use
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the legacy palette. Surfaces convert one at a time; the end state is that every colour, radius and
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spacing value resolves from `Tokens.xaml` and a guard fails on any raw `#hex` outside it.
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- **Fonts ship with the app** (`Assets/Fonts/*.ttf`, OFL-1.1) — no installation, no network, no
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dependence on what the machine happens to have. Notice and license text travel with them (`THIRD-PARTY-NOTICES.txt` items 13-14).
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