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[Bug]: Theme preset geist points at undefined --font-geist

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#581 0 comments 0 reactions 0 assignees View on GitHub

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@claude is already working on this.

Since Oct 23, 2026.

  • #582 by @claude — open

Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
73/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Active
Tech stack
next.js, typescript
Domain
frontend

Research direction

Start by tracing how theme.preset is decoded and mapped to CSS font variables, then compare the geist preset mapping with the Geist font loader variable shown in the issue. Update the mapping so --font-sans and --font-heading resolve to --font-geist-sans; verify the generated theme CSS uses that variable.

Written by the indexing model from the issue text.

Description

Where does this happen?

Hosted docs site (a URL on docs.page)

docs.page URL

https://docs.page/invertase/reeval~docs%2Frebuild-preview

GitHub repository

invertase/reeval

What happened?

docs.json sets theme.preset to b2fA. That shadcn preset's font is geist.

The hosted page resolves the preset to:

--font-sans: var(--font-geist);
--font-heading: var(--font-geist);

The font loader on the same page registers Geist as --font-geist-sans ("Geist", "Geist Fallback"), via the geist_…__variable class. Nothing defines --font-geist. The tokens resolve empty, and the site keeps the platform font stack.

Expected: --font-sans and --font-heading reference --font-geist-sans.

Steps to reproduce
  1. Set theme.preset to b2fA in docs.json (npx shadcn preset decode b2fA reports font geist).
  2. Open https://docs.page/invertase/reeval~docs%2Frebuild-preview
  3. In the page payload, the resolved theme CSS sets --font-sans and --font-heading to var(--font-geist).
  4. In the site CSS, the Geist next/font module defines --font-geist-sans, not --font-geist.
Area

docs.json / configuration

CLI version or browser

Hosted site, observed 23 Oct 2026. Not a CLI issue.

Relevant log output
--font-sans: var(--font-geist);
--font-heading: var(--font-geist);

.geist_7e573fc1-module__ELTdiq__variable { --font-geist-sans: "Geist", "Geist Fallback" }
Additional context

b2fA decodes to style nova, base neutral, theme neutral, font geist, heading inherit.

Inter would connect: its loader variable is --font-inter, which is --font- plus the preset id. Geist is split into sans and mono, so the bare id geist does not match --font-geist-sans.

Dominant language
TypeScript
Stars
675
Forks
104
Avg merge
4d 13h
Merged PRs (30d)
6

Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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