The DESIGN.md type standard needs the fonts actually present — the machine's installed faces
are not a design system. Four Inter weights (400/500/600/700) and two JetBrains Mono weights
(500/600) ship as WPF resources from Assets/Fonts; the token families resolve them with the
`/Assets/Fonts/#Family` pack form, so nothing depends on an install or a network fetch.
Licensing (recorded in docs/ai/product.md): OFL-1.1 is a free licence but is NOT GPL-compatible
in the linking sense. These are separate .ttf files loaded through WPF's font stack — an
aggregate, not linked code — so they coexist with the GPL-3.0 app. Obligations carried:
copyright line in THIRD-PARTY-NOTICES.txt (new items 13-14), the OFL text beside the files
(Assets/Fonts/OFL-*.txt), no modification, no reserved-name reuse.
Guard: BundledFontsTests — files exist and are real binaries, the csproj ships them, the theme
uses pack URIs (a bare family name would silently fall back), the notice and both OFL texts are
present, and no third font family sneaks in.
Pending visual confirmation: the first launch should render panel text in Inter and telemetry
in JetBrains Mono.
Tokens.xaml carries every colour, type size, spacing step, radius and motion duration from
DESIGN.md; App.xaml merges it BEFORE Controls.xaml so styles can resolve tokens.
Guard (DesignTokensTests, 4 facts): the test PARSES DESIGN.md — the colour tables under
"## Colour" are the contract — and fails if a documented token has no brush, if the hex
disagrees, if the meter bands drift, if Tokens ever merges after Controls, or if the retired
brand red #e94560 comes back as a token. Adding a colour to the standard now requires
implementing it, and changing the theme without the document is caught.
Inter/JetBrains Mono are declared as token families with system fallbacks; the bundled font
assets are the next unit.
No surface consumes tokens yet — this unit is the foundation only.