@quartz-community/fonts

Fine-grained font control for Quartz sites. Supports per-heading fonts, automatic theme font discovery via QuartzTheme, and Obsidian-compatible defaults.

Installation

npx quartz plugin add github:quartz-community/fonts

Usage

plugins:
  - source: github:quartz-community/fonts
    enabled: true

With custom fonts:

plugins:
  - source: github:quartz-community/fonts
    enabled: true
    options:
      body: '"Inter", sans-serif'
      header: '"Playfair Display", serif'
      code: '"JetBrains Mono", monospace'

Configuration

Font options accept either a CSS font-family string or an object with Google Fonts loading control:

# String form
body: '"Inter", sans-serif'

# Object form (for Google Fonts weight/italic control)
body:
  name: Inter
  weights: [400, 600, 700]
  includeItalic: true

Option	Type	Default	Description
title	FontSpecification	header value	Font family for the site title.
body	FontSpecification	Obsidian default	Font family for body text.
header	FontSpecification	Obsidian default	Default font family for all headings (h1-h6).
code	FontSpecification	Obsidian default	Font family for code and monospace elements.
interface	FontSpecification	Obsidian default	Font family for UI elements.
h1	FontSpecification	header value	Font family for h1 headings.
h2	FontSpecification	header value	Font family for h2 headings.
h3	FontSpecification	header value	Font family for h3 headings.
h4	FontSpecification	header value	Font family for h4 headings.
h5	FontSpecification	header value	Font family for h5 headings.
h6	FontSpecification	header value	Font family for h6 headings.
useThemeFonts	boolean	true	Use fonts from QuartzTheme as defaults when it is installed.
fontOrigin	string	"local"	"googleFonts" to auto-load from Google Fonts, "local" for no loading.

Default options

- source: github:quartz-community/fonts
  enabled: true
  options:
    useThemeFonts: true
    fontOrigin: local

How it works

Fonts resolves fonts using a priority chain:

User config (plugin options)
  -> Theme fonts (from QuartzTheme, if installed)
    -> Obsidian defaults (system font stacks)

For individual headings, the resolution is:

h1 option -> header option -> theme --h1-font -> theme font -> Obsidian default

For the site title:

title option -> header option -> theme font -> Obsidian default

With QuartzTheme

When QuartzTheme is installed and runs before Fonts, theme fonts are automatically discovered and used as defaults. Any options you set in Fonts will override the theme fonts.

Fonts must run after QuartzTheme. This is handled automatically by defaultOrder (QuartzTheme = 50, Fonts = 60).

Without QuartzTheme

Fonts works standalone. Without a theme, it falls back to Obsidian's default system font stacks.

Examples

# Use theme fonts automatically (default behavior)
- source: github:quartz-community/fonts
  enabled: true

# Override just the heading font
- source: github:quartz-community/fonts
  enabled: true
  options:
    header: '"Playfair Display", serif'

# Full control with per-heading fonts
- source: github:quartz-community/fonts
  enabled: true
  options:
    body: '"Inter", sans-serif'
    header: '"Playfair Display", serif'
    code: '"JetBrains Mono", monospace'
    h1: '"Playfair Display", serif'
    h2: '"Lora", serif'

# Load from Google Fonts automatically
- source: github:quartz-community/fonts
  enabled: true
  options:
    fontOrigin: googleFonts
    body: Inter
    header: Playfair Display
    code: JetBrains Mono

# Google Fonts with weight/italic control
- source: github:quartz-community/fonts
  enabled: true
  options:
    fontOrigin: googleFonts
    body:
      name: Inter
      weights: [400, 600, 700]
      includeItalic: true
    header:
      name: Playfair Display
      weights: [400, 700]
    code:
      name: JetBrains Mono
      weights: [400]

# Custom title font (separate from header)
- source: github:quartz-community/fonts
  enabled: true
  options:
    fontOrigin: googleFonts
    title: Abril Fatface
    header: Playfair Display
    body: Inter
    code: JetBrains Mono

# Ignore theme fonts entirely
- source: github:quartz-community/fonts
  enabled: true
  options:
    useThemeFonts: false
    body: '"Inter", sans-serif'

Google Fonts Validation

When fontOrigin: googleFonts is set and the optional google-font-metadata package is installed, Fonts validates your font configuration at build time:

• Checks that font family names exist in Google Fonts.
• Warns if requested weights are not available for a font.
• Warns if italic is requested but the font doesn't support it.

Install it to enable validation:

npm install google-font-metadata

Validation warnings are logged to the console but do not block the build.

Documentation

See the Quartz documentation for more information.

License

MIT