# Font Licenses

All three font families bundled with Playground Design System are licensed
under the SIL Open Font License, Version 1.1 (OFL-1.1). They are free to
use, modify, embed, and redistribute under the terms of OFL-1.1.

Full license text per family:

- **Inter** (Regular, Medium, SemiBold, Bold) — `LICENSE-Inter.txt`
  Copyright (c) 2016 The Inter Project Authors
  Source: https://github.com/rsms/inter
  Version bundled: 4.0

- **JetBrains Mono** (Regular, Medium, SemiBold) — `LICENSE-JetBrainsMono.txt`
  Copyright 2020 The JetBrains Mono Project Authors
  Source: https://github.com/JetBrains/JetBrainsMono
  Version bundled: 2.304

- **Source Serif 4** (Regular, Semibold) — `LICENSE-SourceSerif4.md`
  Copyright 2014–2023 Adobe (Reserved Font Name "Source")
  Source: https://github.com/adobe-fonts/source-serif
  Version bundled: 4.005

## Provenance

Files in this directory were obtained from the upstream release artifacts
linked above on 2026-05-03. Source Serif 4 woff2 files were generated locally
from the desktop OTF release using `fonttools ttLib.woff2 compress`; all
others are unmodified from upstream webfont releases.

## Why bundled

These fonts ship with the design system to eliminate runtime requests to
external CDNs (e.g., fonts.googleapis.com). This guarantees:

- No data leakage about end-user IPs / User-Agents to third parties.
- GDPR compliance for Norwegian public-sector deployments.
- Functioning Playgrounds in offline / air-gapped environments.

Each Playground HTML loads `../shared/playground-design-system/fonts.css`,
which declares all `@font-face` rules pointing at the .woff2 files in this
directory.
