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293 lines
8.5 KiB
Markdown
293 lines
8.5 KiB
Markdown
# theme.yml reference
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`theme.yml` controls the visual presentation of your site. It is separate from `config.yml` so you can update colours and fonts without touching site settings, and vice versa. `index.html` loads it at runtime — no build step required.
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Point `config.yml` at it with:
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```yaml
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theme: theme.yml
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```
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---
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## Colours — light and dark mode
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`light` and `dark` are the two mode blocks. Both accept the same keys. mdcms switches between them based on the user's system preference or the theme toggle.
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### Base colours
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```yaml
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light:
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accent: "#2563EB" # Primary accent — links, active nav item, focus rings.
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background: "#FFFFFF" # Main content area background.
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nav-background: "#F8FAFC" # Sidebar / topbar background.
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text: "#1E293B" # Body text colour.
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text-muted: "#64748B" # Secondary text — descriptions, timestamps, captions.
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divider: "#CBD5E1" # Border and hr colour.
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# Omit to auto-derive: color-mix(background 85%, text).
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dark:
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accent: "#60A5FA"
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background: "#0F172A"
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nav-background: "#1E293B"
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text: "#F1F5F9"
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text-muted: "#94A3B8"
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divider: "#334155" # Omit to auto-derive.
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```
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All values are CSS colour strings (hex, `rgb()`, `hsl()`, named colours, `rgba()`).
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### Nav colours
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These control every element inside the sidebar. When `nav-background` is a neutral near-white or near-black the defaults (which fall back to the base colours) work fine and can be omitted. Set them explicitly whenever `nav-background` is a saturated brand colour, a dark sidebar in an otherwise light design, or any noticeably tinted background.
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```yaml
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light:
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# Nav links and section labels
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nav-link: "#1E293B" # Inactive nav link text. Defaults to text.
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nav-link-active: "#2563EB" # Active (current page) nav link. Defaults to accent.
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nav-section-heading: "#64748B" # Section label text (uppercase, small). Defaults to text-muted.
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# Sidebar header elements
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nav-sitename: "#1E293B" # Site name in the sidebar header. Defaults to nav-link.
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nav-description: "#64748B" # Site description below the site name. Defaults to nav-section-heading.
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nav-toggle: "#64748B" # Dark/light mode toggle button. Defaults to nav-section-heading.
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```
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The same keys apply in the `dark:` block.
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**When nav-background is a bold colour** (e.g. brand red, navy, deep green), set all six nav keys explicitly so links, labels, the site name, description, and toggle are all legible against the nav background. A common pattern is white (`#FFFFFF`) for `nav-link`, `nav-link-active`, and `nav-sitename`, and a semi-transparent white (e.g. `rgba(255,255,255,0.65)`) for `nav-section-heading`, `nav-description`, and `nav-toggle`.
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---
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## Semantic colours
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Used by callout tags (`callout-info`, `callout-warning`, `callout-success`, `callout-error`). `colours-semantic` applies to both modes. `colours-semantic-dark` overrides for dark mode only — use lighter, more luminous variants so callout borders and tinted backgrounds remain legible on dark page backgrounds.
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```yaml
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colours-semantic:
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info: "#2563EB"
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warning: "#D97706"
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success: "#16A34A"
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error: "#DC2626"
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colours-semantic-dark:
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info: "#60A5FA" # Lighter blue — visible on dark background
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warning: "#F59E0B"
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success: "#34D399"
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error: "#F87171"
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```
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If `colours-semantic-dark` is omitted, the `colours-semantic` values are used in both modes.
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---
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## Callout defaults
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Overrides the icon and colour used for each callout type. `primary-colour` sets the left border; `background-colour` sets the tinted background fill (applied at ~8% opacity by the renderer).
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```yaml
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callouts:
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info:
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icon: info # SVG icon name from assets/icons/ (without .svg)
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primary-colour: "#2563EB" # Left border colour
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background-colour: "#2563EB" # Background tint colour
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warning:
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icon: warning
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primary-colour: "#D97706"
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background-colour: "#D97706"
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success:
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icon: success
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primary-colour: "#16A34A"
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background-colour: "#16A34A"
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error:
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icon: error
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primary-colour: "#DC2626"
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background-colour: "#DC2626"
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```
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Individual callout blocks in markdown can override the icon with `icon: <name>`.
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---
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## Nav section toggle icons
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Sections with `pagesvisibility: hidden` in `nav.yml` are collapsible. These two top-level keys (not inside `light:`/`dark:`) set the icons used for the toggle.
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```yaml
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nav-section-expand-icon: arrow_right # Shown when section is collapsed. Default: arrow_right.
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nav-section-collapse-icon: arrow_drop_down # Shown when section is expanded. Default: arrow_drop_down.
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```
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Available icon names:
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| Expand | Collapse | Style |
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|---|---|---|
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| `arrow_right` | `arrow_drop_down` | Solid filled triangles (default) |
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| `keyboard_arrow_right` | `keyboard_arrow_down` | Chevrons — lighter, more modern |
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| `keyboard_double_arrow_right` | `keyboard_double_arrow_down` | Double chevrons — emphatic |
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| `expand_content` | `collapse_content` | Corner arrows — editorial |
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| `add` | `minimize` | Plus / minus — minimal |
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The two keys are independent — expand and collapse do not have to use icons from the same pair, though keeping a consistent visual weight reads better.
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---
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## Typography
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Font format: `"provider:Font Name:weight"`
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- `provider`: `bunny` (privacy-friendly, GDPR-safe) or `google`
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- `Font Name`: exact font family name as listed on the font provider
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- `weight`: numeric CSS weight (`400`, `700`, etc.)
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```yaml
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font-body: "bunny:Noto Sans:400" # Body text font
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font-heading: "bunny:Noto Sans:700" # Headings (h1–h6) font
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font-code: "bunny:Fira Code:400" # Code blocks and inline code
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```
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System fonts (no external request):
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```yaml
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font-body: "system-ui:400"
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```
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Shorthand without provider defaults to Bunny Fonts:
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```yaml
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font-body: "Noto Sans:400" # equivalent to bunny:Noto Sans:400
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```
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Size and spacing:
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```yaml
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font-size: 1.0 # Unitless multiplier. 1.0 = 16px base. 1.125 = 18px.
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line-height: 1.7 # Unitless multiplier for body text line spacing.
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```
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---
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## Layout
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```yaml
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main-width: 80em # Maximum width of the content column. Any CSS length unit.
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nav-width: 20em # Width of the sidebar. Any CSS length unit.
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```
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---
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## Full example
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```yaml
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# mdcms v0.4 | DO NOT REMOVE THIS COMMENT
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# MD-CMS v0.4 — Theme configuration
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light:
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accent: "#2563EB"
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background: "#FFFFFF"
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nav-background: "#F8FAFC"
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text: "#1E293B"
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text-muted: "#64748B"
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# nav-link, nav-link-active, nav-section-heading, nav-sitename,
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# nav-description, nav-toggle — omit when nav-background is neutral.
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# divider — omit to auto-derive from background + text.
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dark:
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accent: "#60A5FA"
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background: "#0F172A"
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nav-background: "#1E293B"
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text: "#F1F5F9"
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text-muted: "#94A3B8"
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colours-semantic:
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info: "#2563EB"
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warning: "#D97706"
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success: "#16A34A"
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error: "#DC2626"
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colours-semantic-dark:
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info: "#60A5FA"
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warning: "#F59E0B"
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success: "#34D399"
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error: "#F87171"
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callouts:
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info:
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icon: info
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primary-colour: "#2563EB"
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background-colour: "#2563EB"
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warning:
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icon: warning
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primary-colour: "#D97706"
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background-colour: "#D97706"
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success:
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icon: success
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primary-colour: "#16A34A"
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background-colour: "#16A34A"
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error:
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icon: error
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primary-colour: "#DC2626"
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background-colour: "#DC2626"
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# nav-section-expand-icon: arrow_right
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# nav-section-collapse-icon: arrow_drop_down
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font-body: "bunny:Noto Sans:400"
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font-heading: "bunny:Noto Sans:700"
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font-code: "bunny:Fira Code:400"
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font-size: 1.0
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line-height: 1.7
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main-width: 80em
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nav-width: 20em
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```
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---
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## Bold nav background example
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When `nav-background` matches or is close to `accent`, set all nav colour keys explicitly:
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```yaml
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light:
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accent: "#D00C33"
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background: "#FFFFFF"
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nav-background: "#D00C33"
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text: "#1A1A1A"
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text-muted: "#5C5C5C"
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nav-link: "#FFFFFF"
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nav-link-active: "#FFFFFF"
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nav-section-heading: "rgba(255,255,255,0.65)"
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nav-sitename: "#FFFFFF"
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nav-description: "rgba(255,255,255,0.65)"
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nav-toggle: "rgba(255,255,255,0.65)"
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dark:
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accent: "#D00C33"
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background: "#0A0A0A"
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nav-background: "#000000"
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text: "#FFFFFF"
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text-muted: "#A89090"
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nav-link: "#E2E2E2"
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nav-link-active: "#FFFFFF"
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nav-section-heading: "#888888"
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nav-sitename: "#FFFFFF"
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nav-description: "#888888"
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nav-toggle: "#888888"
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colours-semantic:
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info: "#D00C33"
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warning: "#B26A1F"
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success: "#2F7A4A"
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error: "#D00C33"
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colours-semantic-dark:
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info: "#FF6B6B"
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warning: "#F59E0B"
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success: "#34D399"
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error: "#FF6B6B"
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```
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