cd1b4f275d
## Thinking Path > - Paperclip orchestrates AI agents for zero-human companies > - The UI ships a dark/light theme toggle and persists the user's explicit choice in `localStorage` > - For first-time visitors with no stored choice, the pre-React bootstrap script in `ui/index.html` hardcoded `"dark"` and never consulted the OS preference > - As a result, users on a light-themed OS were forced into dark mode until they clicked the toggle once — a first-impression friction with no compensating benefit > - This pull request makes the bootstrap respect `prefers-color-scheme` for first-time visitors and adds a `matchMedia` listener so the in-app theme auto-follows OS changes until the user makes an explicit choice > - The benefit is a friction-free first visit that matches every other modern web app, with zero impact on users who have already chosen a theme ## Linked Issues or Issue Description No existing issue covers this directly — problem described in-PR (bug shape): - For first-time visitors with no stored theme choice, the pre-React bootstrap script in `ui/index.html` hardcoded `"dark"` and never consulted the OS `prefers-color-scheme` preference. - Users on a light-themed OS were forced into dark mode until they clicked the toggle once — first-impression friction with no compensating benefit. - This PR supersedes part of PR #3732 (the `prefers-color-scheme` bootstrap slice); no standalone issue was filed for it. ## What Changed - **`ui/index.html`** — the pre-React bootstrap script now computes a `prefersDark` fallback via `matchMedia("(prefers-color-scheme: dark)")`, guarded by a `typeof window.matchMedia === "function"` feature-detection check, in place of the hardcoded `"dark"` default. A stored `localStorage` value still takes precedence. - **`ui/src/context/ThemeContext.tsx`** — tracks an `hasExplicitChoice` flag. While `false`, a `MediaQueryList` `change` listener keeps the in-app theme in sync with OS theme switches. Once `setTheme` / `toggleTheme` runs, the choice is persisted and the listener is removed. ## Verification - `pnpm --filter @paperclipai/ui run typecheck` — clean. - `npx vitest run src/components/SidebarAccountMenu.test.tsx` — 1/1 pass (the one test that exercises `ThemeContext`). - Manual: launched the Vite UI dev server with a mocked `/api/auth/get-session` 401, navigated to `/auth` with no `localStorage.theme` set, and toggled the browser's emulated `prefers-color-scheme` between `dark` and `light`. Bootstrap renders the matching theme without a flash. Screenshots committed. **Screenshots — first-visit (no stored theme) with system pref:** | System dark | System light | | --- | --- | <img width="1280" height="800" alt="first-visit-prefers-dark" src="https://github.com/user-attachments/assets/c30274d5-a2e0-4ed8-b7ef-b96b8caac5ca" /> <img width="1280" height="800" alt="first-visit-prefers-light" src="https://github.com/user-attachments/assets/ebd8e9cf-0be1-4b36-a6f8-eb38b00dff5c" /> (Without this PR, both screenshots would have rendered dark.) ## Risks Low. Purely additive: - A stored `localStorage` value still takes precedence over the OS preference, so users who have already picked a theme are unaffected. - SSR-safe: both new code paths are gated on `typeof window !== "undefined"` (the inline script only runs in the browser, and the React `matchMedia` listener is attached inside `useEffect`). - No new dependencies, no API surface change. ## Model Used Claude Opus 4.7 (1M context), extended thinking mode. ## Checklist - [x] I have searched GitHub for duplicate or related PRs and linked them above - [x] Thinking path traces from project context to this change - [x] Model used specified - [x] Checked ROADMAP.md — not in conflict with planned core work - [x] Tests run locally and pass - [x] No new test cases — the change is observable only via real `matchMedia` events, which jsdom does not faithfully implement; manual verification above - [x] UI change — before/after screenshots in `docs/pr-screenshots/pr-5873/` - [x] No documentation updates required - [x] Documented risks above - [x] Will address all Greptile and reviewer comments before merge Supersedes part of #3732 (the `prefers-color-scheme` bootstrap slice). --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> Co-authored-by: Devin Foley <devin@paperclip.ing>
@paperclipai/ui
Published static assets for the Paperclip board UI.
What gets published
The npm package contains the production build under dist/. It does not ship the UI source tree or workspace-only dependencies.
Storybook
Storybook config, stories, and fixtures live under ui/storybook/.
pnpm --filter @paperclipai/ui storybook
pnpm --filter @paperclipai/ui build-storybook
Typical use
Install the package, then serve or copy the built files from node_modules/@paperclipai/ui/dist.