## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.
YES/NO
## What kind of change does this PR introduce?
Bug fix, feature, docs update, ...
## What is the current behavior?
Please link any relevant issues here.
## What is the new behavior?
Feel free to include screenshots if it includes visual changes.
## Additional context
Add any other context or screenshots.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Refreshed theming across the UI to use modern color expressions and
shared theme variables (including OKLCH-based gradients), improving
consistency for charts, code blocks, overlays, icons, and decorative
backgrounds.
* **Bug Fixes**
* Improved light/dark color and gradient consistency across axis/grid
styling, reference lines, buttons/badges, sidebar accents, loaders, and
other visual components.
* **Documentation**
* Updated styling/theming guidance to align with the revised semantic
token system and the updated theme variable usage patterns.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
This PR improves the replication UI in the following ways:
- Adds a new selecion picker for destinations which is split by the
destination location and it's clearer and can scale more when we add
more destinations.
- Adds a much improved section on lag, highlighting new metrics that
could help debug issues more easily.
- Improves the copy across the whole code.
- Fixes the 2d topological view of replication with better status
handling.
### Screenshots
<img width="1270" height="777" alt="image"
src="https://github.com/user-attachments/assets/0ffc890e-2f80-47e5-bdb1-75071adda024"
/>
<img width="1665" height="656" alt="image"
src="https://github.com/user-attachments/assets/23a27a02-acb2-4891-af95-5bc1d6ec7bfe"
/>
<img width="1454" height="247" alt="image"
src="https://github.com/user-attachments/assets/c8799983-aa63-42b2-9370-ae4e009c1573"
/>
<img width="1120" height="340" alt="image"
src="https://github.com/user-attachments/assets/20a18ad6-e5a9-40ec-80d4-42d6f783d868"
/>
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Live slot health indicators, legend, and connection badges.
* Grouped destination type dropdown with alpha badges.
* **Improvements**
* Clearer UI copy for external destinations, alpha disclaimers, and
onboarding flows.
* Consolidated "n/a" handling for lag displays and richer metric
tooltips.
* Simplified replication diagram visuals and clearer table/row
status/lag presentation.
* Replication status responses now include expanded slot health and lag
metrics.
* **Tests**
* New test suites covering destination selection and destination row
states.
<!-- 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>
