Files
platform/THEMES-NOTES.md
T
pastilhasandClaude Opus 5 105766a4eb extract the visual layer into its own workspace
The application no longer knows what it looks like. It imports one stylesheet and
mounts one provider; every colour, surface and radius lives in `src/workspaces/theme`.

Proven both directions, because either alone would be worthless:

  Duck renders IDENTICALLY to before — checked against screenshots taken before
  anything was touched, not asserted.

  Plain renders as white with black ink, no component edits — panels turn white, the
  teal avatar turns black, the grid fills vanish.

── What moved ──

`globals.css` held three unrelated things: Tailwind wiring, the token contract, and
the Duck brand's hex values. Split along those seams. `base.css` is structure and
names no colour; a theme file is values and nothing else, scoped to
`[data-theme='<id>']`. Adding a theme is a CSS file plus one registry line.

Light and dark are separate themes rather than a mode — the owner's call, and it
removes a concept from the app. Each is written out in full: a theme that only makes
sense as a diff against another cannot be authored by a stranger or sold to a
customer. `.dark` survives only as a per-theme flag, because 396 `dark:` utilities in
33 components resolve against it; retiring those retires the flag.

The `duck-*` utility names are kept for now and pointed at neutral variables, so a
non-Duck theme can define them sensibly. Renaming 1,470 occurrences in the same commit
as the extraction would make any visual difference impossible to attribute. Worth
recording that `duck-dark` was never a brand colour — `#14532d` in light, near-white
in dark, used by 946 components to mean "text". It is `--ink` now.

Surfaces are complete CSS values rather than HSL triplets: `--panel-bg` has to be able
to be a gradient or an image, or the glass the app already has would be unthemeable.

The old provider is a re-export, so its six call sites are untouched and the
extraction stays one variable.

── Bug found by the Plain theme ──

`useThemeSync` stamped the server's `appearance.colorMode` over the local theme on
every load, so choosing Plain and reloading silently reverted it. Diagnosed by asking
the page what it was wearing rather than reasoning: `stored` said `duck-dark` when the
script had written `plain`. The server value is now a starting point for a browser
that has never chosen, not a continuous instruction.

── Tools ──

Two, both of which lied to me before they worked. The snapshot script photographed
light twice and called it a clean run (one browser context, accumulated init scripts);
it now warns when a light/dark pair is identical. The preview server returned the
shell for missing assets, so the logo and wallpaper vanished and read as regressions
in the comparison — it falls through to upstream now.

Dead Tailwind v3 residue deleted: `components/ui/tailwind.{config.ts,css}`, referenced
by nothing, with content globs pointing at a directory that does not exist.

── Not done, deliberately ──

`THEMES-NOTES.md` has the full list. The headlines: the reference repo has not been
read, so the switching mechanism is deliberately the dumbest thing that works; the
wallpaper, panel radius and logo are still component-owned and Plain proves it; and
~985 raw Tailwind palette usages remain, worst in Soulseek.

tsgo clean.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-16 22:00:38 +00:00

5.9 KiB
Raw Blame History

Themes decoupling — working notes

Branch themes-decoupling, worktree platform-themes. Nothing here is on master.

Read this before the diff. It is the state of the work, the decisions taken and why, and the things deliberately left alone.


Where it got to

The visual layer is out of the app and into src/workspaces/theme. The application no longer contains any colour: it imports one stylesheet and mounts one provider.

Proven by the two things that matter:

  • Duck renders identically to before. Panels, wallpaper, grid fills, glass, logo — checked against screenshots taken before anything was touched.
  • Plain renders as white with black ink, with no component edits. Panels turn white, the teal avatar turns black, grid fills disappear. That is the decoupling working.

Switch themes from the avatar menu, top right.


The shape

src/workspaces/theme/
  css/base.css              structure — Tailwind, the @theme contract, element defaults. NO values.
  css/themes/duck-light.css  the app's original appearance, moved unchanged
  css/themes/duck-dark.css   ditto, the old .dark block
  css/themes/plain.css       white/black — an instrument, not a design
  css/chrome.css            scrollbars and overlays, now in theme variables
  css/index.css             the single import an app makes
  src/themes.ts             the registry: id, name, family, applyDarkClass. Nothing about appearance.
  src/ThemeProvider.tsx     sets data-theme, toggles .dark, persists the choice

A theme is a CSS file scoped to [data-theme='<id>'] plus one line in the registry. Nothing else.


Decisions, and why

Light and dark are separate themes, not a mode. The owner's call, and it removes a concept from the app. Duck Light and Duck Dark are siblings. Written out in full rather than as a diff — a theme that only makes sense in the presence of another cannot be authored by a third party or sold to a customer.

.dark survives as a compatibility flag. 396 dark: utilities are written into 33 components and they resolve against that class. A theme sets applyDarkClass and they keep working. Shim with a known end date; removing those 396 retires it.

duck-* utility names are kept, pointed at neutral variables. ~1,470 occurrences across 108 files. Renaming them and extracting in the same change would make a visual difference impossible to attribute. They now resolve through --brand-primary, --ink, and friends, so a non-Duck theme can define them sensibly even while the spelling is wrong.

duck-dark is --ink. It was never a brand colour: #14532d in light, near-white in dark. 946 components use it to mean "text". That misnaming is why it is the most-used token in the app.

Surfaces are complete CSS values, not HSL triplets. --panel-bg can be rgba(), a gradient or an image. A panel background that could only be a flat colour would rule out the glass the app has now.

The old provider file is a re-export. Six call sites keep working untouched, so the extraction is one variable.


Blockers and open questions — for the morning

1. The reference repo (vimazing) has not been read yet. The switching mechanism (data-theme on <html>) and the packaging format are deliberately the dumbest thing that works, because that repo will dictate them. Everything above is independent of that choice.

2. Leaks the Plain theme exposed. These are components painting themselves rather than asking the theme. The screenshots in .snapshots/plain/ are the punch list:

  • The wallpaper. Still renders under Plain, so it is set by a component, not --page-bg. Probably the dashboard layout. Needs to become a theme-owned surface.
  • Panel radius. --panel-radius: 0 had no effect — panels hardcode rounded-*. Shape is themeable in principle and is not yet.
  • The logo. A fixed image. Fine for Duck, wrong for white-labelling: a customer's build needs its own.
  • ~985 raw Tailwind palette usages (text-emerald-400, bg-black/10) and ~119 hex literals. The worst concentration by far is officerdev/src/apps/Soulseek/ (~285). MetricCard.tsx is the highest-leverage single fix — a shared component hardcoding its palette.

3. Server settings still store appearance.colorMode, not a theme id. useThemeSync used to stamp the server's colour mode over the local theme on every load — picking Plain and reloading silently reverted it. Now the server value is only honoured when the browser has never chosen. The proper fix is storing a theme id, which needs a settings migration.

4. A pre-existing bug, unrelated but adjacent. The server's default is appearance: { theme: 'light' } while the client reads appearance.colorMode — so a fresh account's server default has never been read. Left alone.

5. rebuildFrontend() reports "Bundle failed" and discards the bundler's actual errors. Cost twenty minutes tonight. Same shape as the agent bugs from earlier — a failure that refuses to say why.

6. Landing and marketplace are untouched. They have their own copies of the palette; duck-teal has three different definitions across the three apps. Folding them into this layer is a natural follow-up and was not in tonight's scope.


Tools built

  • scripts/theme-snapshot.ts — captures 8 routes × 2 modes, or a pinned theme with --theme. Compares two directories byte-for-byte. Its first version silently photographed light twice; it now warns when a light/dark pair is identical.
  • scripts/theme-preview-server.ts — serves this worktree's build against the RUNNING platform's API, so the new frontend can be seen with real data without starting a second platform beside the live one.

Byte comparison is too strict for before/after across two builds: this worktree has no plugins, so the dock differs on every page, and live data moves between captures. Use it to find which screens changed, then look at them.