Reorganizes `twenty-ui`'s component organization to follow how the best
UI libraries (MUI, Mantine, Base UI, Polaris) structure their source,
now that the package has stabilized.
**Taxonomy** — dissolves the meaningless `components/` junk-drawer and
the 107-file `display/` mega-category. New domains/subpaths:
`data-display`, `typography`, `icon`, `surfaces`; `feedback` and
`layout` absorb the rest (banners/callout/info + placeholders →
feedback; modal/card → surfaces; motion + separators → layout).
**Per-component layout** — every component is now
`<domain>/<ComponentName>/<ComponentName>.tsx` with colocated
styles/stories/types, `internal/` for private helpers and `parts/` for
re-exported compound sub-parts. The redundant inner `/components/` is
gone. `icon` and `json-visualizer` are kept as cohesive subsystems.
**Also:** adds a tree-shakeable root barrel (`import { Button } from
'twenty-ui'`), the generator now owns `individual-entry.ts`, and a real
barrel-leak bug is fixed (private `internals/` parts were leaking into
the public API).
Consumer imports (~1.2k files) and the `twenty-sdk` UI aggregator were
updated by codemod. The change is **export-neutral** except 16
intentionally-removed private internals symbols (all verified
unconsumed). Gates green: typecheck, lint, build, size-limit, storybook.
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## Description
Promotes the next-gen UI library (formerly `twenty-new-ui`) to the name
**`twenty-ui`** (v0.1.0, publishable) and renames the old package to
**`twenty-ui-deprecated`**. Rewrites ~1,730 `twenty-ui` imports →
`twenty-ui-deprecated`, updates all configs/CI/Docker/deps, and migrates
twenty-front's `Toggle` to the new package (first consumer) as a
drop-in.
## Next steps
- Wire the `ui/v*` publish dispatch (`cd-deploy-tag.yaml` +
`.yarnrc.yml`), then tag `ui/v0.1.0` to publish.
- Continue migrating components from `twenty-ui-deprecated` →
`twenty-ui`.
## Summary
- Move Modal UI components (`Modal`, `ModalContent`, `ModalHeader`,
`ModalFooter`, `ModalBackdrop`) from `twenty-front` to `twenty-ui` as
stateless, reusable components
- Create `ModalStatefulWrapper` in `twenty-front` that connects Jotai
state (`isModalOpenedComponentState`) to the stateless `Modal` via an
`isOpen` prop
- Rename `modalVariant` prop to `overlay` with clearer values: `'dark'`
(default), `'light'` (in-container), `'transparent'` (invisible panel).
Remove unused `'medium'` overlay
- Rename `modalId` to `modalInstanceId` across the entire modal zone
(~30 consumer files)
- Extract `ModalProps` to its own file in
`twenty-ui/types/ModalProps.ts`; extract `ModalStatefulWrapperProps` to
its own file using `Pick<ModalProps, ...>` for shared props
- Extract `ModalBackdrop` to its own file and export from `twenty-ui`;
use it in `UserOrMetadataLoader` instead of a local styled component
- Use `ModalFooter` in `StepNavigationButton` and `ModalHeader` in
`SpreadsheetImportStepperContainer` instead of duplicated `styled.div`
definitions
- Remove unused `onClose` prop from stateless `Modal`; fix `typeof
document` guard in `ModalStatefulWrapper`
- Split shared types into individual files: `ModalSize.ts`,
`ModalPadding.ts`, `ModalOverlay.ts`
- Extract wyw profiling instrumentation from `vite.config.ts` into
reusable `createWywProfilingPlugin` with parametrized threshold and
improved logging
- Delete old `Modal.tsx`, `Modal.styles.ts`, `ModalContent.tsx`,
`ModalHeader.tsx`, `ModalFooter.tsx` from `twenty-front`
- Add comprehensive Storybook stories in `twenty-ui` covering Default,
Confirmation, Small, ExtraLarge, Closed, and Interactive variants
## Summary
Completes the migration of the frontend styling system from **Emotion**
(`@emotion/styled`, `@emotion/react`) to **Linaria** (`@linaria/react`,
`@linaria/core`), a zero-runtime CSS-in-JS library where styles are
extracted at build time.
This is the final step of the migration — all ~494 files across
`twenty-front`, `twenty-ui`, `twenty-website`, and `twenty-sdk` are now
fully converted.
## Changes
### Styling Migration (across ~480 component files)
- Replaced all `@emotion/styled` imports with `@linaria/react`
- Converted runtime theme access patterns (`({ theme }) => theme.x.y`)
to build-time `themeCssVariables` CSS custom properties
- Replaced `useTheme()` hook (from Emotion) with
`useContext(ThemeContext)` where runtime theme values are still needed
(e.g., passing colors to non-CSS props like icon components)
- Removed `@emotion/react` `css` helper usages in favor of Linaria
template literals
### Dependency & Configuration Changes
- **Removed**: `@emotion/react`, `@emotion/styled` from root
`package.json`
- **Added**: `@wyw-in-js/babel-preset`, `next-with-linaria` (for
twenty-website SSR support)
- Updated Nx generator defaults from `@emotion/styled` to
`@linaria/react` in `nx.json`
- Simplified `vite.config.ts` (removed Emotion-specific configuration)
- Updated `twenty-website/next.config.js` to use `next-with-linaria` for
SSR Linaria support
### Storybook & Testing
- Removed `ThemeProvider` from Emotion in Storybook previews
(`twenty-front`, `twenty-sdk`)
- Now relies solely on `ThemeContextProvider` for theme injection
### Documentation
- Removed the temporary `docs/emotion-to-linaria-migration-plan.md`
(migration complete)
- Updated `CLAUDE.md` and `README.md` to reflect Linaria as the styling
stack
- Updated frontend style guide docs across all locales
## How it works
Linaria extracts styles at build time via the `@wyw-in-js/vite` plugin.
All expressions in `styled` template literals must be **statically
evaluable** — no runtime theme objects or closures over component state.
- **Static styles** use `themeCssVariables` which map to CSS custom
properties (`var(--theme-color-x)`)
- **Runtime theme access** (for non-CSS use cases like icon `color`
props) uses `useContext(ThemeContext)` instead of Emotion's `useTheme()`
Raphaël Bosi
