## What kind of change does this PR introduce?
Chore.
## What is the current behaviour?
Classic Dark remains available across the shared theme library and
several apps. Studio now supports System, Dark, and Light as its theme
modes, but still carries compatibility paths for Classic Dark.
## What is the new behaviour?
- Removes Classic Dark from shared theme options, application commands,
stylesheets, previews, examples, and replay handling.
- Deletes the Classic Dark and faux Classic Dark stylesheets.
- Removes the now-unused Classic Dark branches from Studio theme colour
controls.
- Migrates `classic-dark` to `dark` so first rendered frame renders Dark
(not Light)
| After |
| --- |
| <img width="1458" height="1778" alt="CleanShot 2026-09-18 at 11 07
40@2x"
src="https://github.com/user-attachments/assets/679bf87f-a3c1-4599-ad2f-292d98d0b856"
/> |
## To test
1. In Studio, open Account Preferences → Appearance. Confirm the
available themes are System, Dark, and Light, and that theme colour
controls still work in each resolved mode.
2. Set the `theme` local storage value to `classic-dark`, then reload
Studio. Confirm it renders as Dark immediately and the stored value
becomes `dark`.
3. Open the theme switcher in Design System, Learn, and UI Library.
Confirm Classic Dark is no longer available and Light, Dark, and System
still apply correctly.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Changes**
* Removed the Classic Dark theme option from theme menus and settings
across the application.
* Classic Dark selections are automatically migrated to the standard
Dark theme.
* Updated theme documentation and demonstrations to list only System,
Light, and Dark.
* Removed Classic Dark styling and preview support; existing Dark,
Light, and System themes remain available.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## What kind of change does this PR introduce?
Bug fix, docs update
## What is the current behavior?
- The breadcrumb component docs at
`/design-system/docs/components/breadcrumb` reference six
`ComponentPreview` demos, but the example components were never
implemented and their registry entries were commented out. The page
rendered without working previews.
Unrelated but snuck in:
- The “responsive” Admonition example is a H2 instead of H3 like the
others.
- The design system ⌘K command switcher grows to the full height of its
nav items instead of scrolling within a bounded list.
Closes DEPR-607
Closes DEPR-608
## What is the new behavior?
- Adds six breadcrumb example components (`breadcrumb-demo`,
`breadcrumb-separator`, `breadcrumb-dropdown`, `breadcrumb-ellipsis`,
`breadcrumb-link`, `breadcrumb-responsive`) under
`apps/design-system/registry/default/example/`
- Re-enables the corresponding entries in `registry/examples.ts` and
rebuilds `__registry__/index.tsx`
- Fixes invalid nested `<li>` markup in the responsive breadcrumb demo
that caused a hydration error
Also includes two small unrelated fixes:
- Caps the ⌘K switcher `CommandList` at `max-h-[300px]` so it scrolls
instead of stretching
- Corrects the admonition fragment docs header type
## Additional context
Test plan:
- [ ] Run `pnpm dev:design-system` and open
`/docs/components/breadcrumb`
- [ ] Confirm all six breadcrumb previews render
- [ ] Confirm no hydration warnings in the browser console for the
responsive example
- [ ] Open the ⌘K switcher and confirm the list scrolls within a bounded
height
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added multiple Breadcrumb demos to the design system gallery,
including link, dropdown, ellipsis, separator, and responsive variants.
* Enabled these Breadcrumb demos in the examples registry.
* **Documentation**
* Updated the “Responsive” docs heading level.
* **Style**
* Constrained the command menu list height inside the dialog for
improved fit.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Problem
Our `<Button>` component breaks the default `button` contract by
redefining the `type` prop to set its variant (`primary`, `default`,
etc) instead of the button type (`submit`, `button`, etc).
This is confusing and forces to write more code when using it with
shadcn components that expect/inject the standard button props.
## Solution
- rename the `type` prop to `variant`
- rename the `htmlType` prop to `type`
- propagate the changes where necessary
- format code
## How to test
As this is just prop renaming, if it builds it's ok
---------
Co-authored-by: Ivan Vasilov <vasilov.ivan@gmail.com>
## Problem
The `_Shadcn_` suffix isn't needed anymore on `Command` components
## Solution
- Remove the `_Shadcn_` suffix
- Simplify UI package exports
- Apply prettier
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Refactor**
* Simplified command component imports and exports across the UI library
by removing internal naming aliases and adopting direct component
references. Updated the public UI package barrel export to use wildcard
re-exports for cleaner API surface.
<!-- review_stack_entry_start -->
[](https://app.coderabbit.ai/change-stack/supabase/supabase/pull/46153?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)
<!-- review_stack_entry_end -->
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
This PR migrates the whole monorepo to use Tailwind v4:
- Removed `@tailwindcss/container-queries` plugin since it's included by
default in v4,
- Bump all instances of Tailwind to v4. Made minimal changes to the
shared config to remove non-supported features (`alpha` mentions),
- Migrate all apps to be compatible with v4 configs,
- Fix the `typography.css` import in 3 apps,
- Add missing rules which were included by default in v3,
- Run `pnpm dlx @tailwindcss/upgrade` on all apps, which renames a lot
of classes
- Rename all misnamed classes according to
https://tailwindcss.com/docs/upgrade-guide#renamed-utilities in all
apps.
---------
Co-authored-by: Jordi Enric <jordi.err@gmail.com>
Sorted all imports in all packages, `cms`, `design-system` and
`ui-library` apps by running `pnpm format` on them.
All changes in this PR are done by the script.
* feat: tidy up header on mobile
* fix: graceful searchbar header
* fix: header classes and unused elements
* feat: trim down logo on header
* fix: logos again
* chore: remove dead code
* fix: classic dark logo header
* fix: page padding tidy ups
* fix: some font sizing
* feat: updated homepage cards
* fix: toc layout
* fix: toc again
* feat: homepage cards all the same size
* fix: footer paddings
* fix: pager if only 1 directional item
* fix: sidebar padding issues
* chore: killing all the defaults
* fix: import for side nav
* fix: sidebar complaining about dialog title
* fix: homepage paddings
* fix: killing one more default export
* feat: update colours icon to francescos
* fix: loose repeated copy
* Add all missing libraries in the packages/apps.
* Add all missing Vitest imports to the tests.
* Add some missing exports to ui.
* Fix the admonition export.
* Fix various minor bugs.
* Migrate the ui package to use vitest.
Danny White
