## I have read the [CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md) file. YES ## What kind of change does this PR introduce? This is a first draft at introducing semantic colours to our Observability charts. This moves away from just random colours being assigned to prop after prop. They're only scoped to the Database reports right now, but if it flows nice, we can open it up to the other reports too. This also aims to tone down some of the harsher colours in our charts, such as the orange which sometimes can look like a warning metric/prop. | Before | After | |--------|--------| | <img width="839" height="336" alt="Screenshot 2026-06-10 at 09 14 56" src="https://github.com/user-attachments/assets/222747c5-973b-4165-aa53-df7b93412ad3" /> | <img width="950" height="341" alt="Screenshot 2026-09-14 at 18 14 47" src="https://github.com/user-attachments/assets/836f3ddd-4a97-4064-b8cf-3a3b435417ac" /> | cc @supabase/design for additional thoughts. <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Added semantic chart color roles with light and dark theme variants for consistent visualizations. * Standardized colors and fills across database, networking, storage, and connection charts. * Maximum-value lines now use configured chart colors when available. * Added chart palette reference and stress-test examples. * Added stacked bar charts, customizable margins, and gradient-filled line charts. * Improved multi-series bar chart focus and date-range footer alignment. * **Documentation** * Documented the chart palette, theme variants, accessibility guidance, and usage recommendations. <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Co-authored-by: Gildas Garcia <1122076+djhi@users.noreply.github.com>
Supabase Design System
Design resources for building consistent user experiences at Supabase.
Getting started
From the repo root:
# Copy local env vars (sets NEXT_PUBLIC_BASE_PATH for asset URLs)
cp apps/design-system/.env.local.example apps/design-system/.env.local
# Move into the design-system app
cd apps/design-system
# Install dependencies
pnpm i
# Build the registry and Velite content, then start the dev servers
pnpm dev
Or from apps/design-system:
# Copy local env vars (sets NEXT_PUBLIC_BASE_PATH for asset URLs)
cp .env.local.example .env.local
# Install dependencies
pnpm i
# Build the registry and Velite content, then start the dev servers
pnpm dev
The dev command builds the registry and Velite content, then runs the Next.js dev server and Velite watcher in parallel.
Open http://localhost:3003/design-system in your browser to see the result.
Doc pages load compiled MDX from .velite/codes/*.json per document. Metadata lives in the smaller allDocs.json index (~367KB instead of ~27MB), so content edits only reload the changed doc's code.
Alternative commands
You can also run the development server and content watcher separately. Build the registry and content first, because dev:next and dev:content do not:
pnpm build:registry
pnpm build:content
# Run only the Next.js development server
pnpm dev:next
# Run only the Velite content watcher (in a separate terminal shell)
pnpm dev:content
From the repo root, pnpm dev:design-system runs the same dev script. If you split the watchers from the root, build first:
pnpm --filter=design-system build:registry
pnpm --filter=design-system build:content
pnpm --filter=design-system dev:next
pnpm --filter=design-system dev:content
Watching for MDX changes
The dev command watches MDX files and hot-reloads them. If you are running pnpm dev:next on its own, also run pnpm dev:content in another terminal.
Adding components
The design system references components rather than housing them. That distinction matters: everything below is about documenting components, not implementing them. Add or edit the components themselves in one of these two places:
packages/ui: basic UI componentspackages/ui-patterns: components built from libraries or frompackages/ui
After you add or remove documented components, update these source files:
config/docs.ts: list of components in the sidebarcontent/docs: the component documentationregistry/examples.ts: example componentsregistry/fragments.ts: fragment componentsregistry/charts.ts: chart componentsregistry/copy-writing.ts: copywriting examplesregistry/default/example/*: the example component implementationsregistry/default/block/*: chart block implementations, when you add a chart
Do not edit __registry__. pnpm dev, pnpm typecheck, and pnpm build generate it from the files above, and it is gitignored. If you add registry entries while the app is already running, regenerate it:
cd apps/design-system
pnpm build:registry