Highlighting Palette

Inside uses base16 for syntax highlighting. A base16 theme is always exactly 16 hex colors. Here’s what each index represents and how they’re applied:

The 16 Colors

Index	Role	Example usage
0	Lightest background	Code block background
1–3	Background shades	Line numbers, gutter
4–6	Foreground/muted	Comments, dimmed text
7	Darkest foreground	Default text
8	Red	Strings, errors
9	Orange	Numbers, constants
10	Yellow	Titles, class names
11	Green	Keywords, types
12	Cyan	Functions, operators
13	Blue	Classes, namespaces
14	Magenta	Regex, special chars
15	Brown	Tags, attributes

Live Demo

Toggle dark mode in the sidebar to see both light and dark palettes in action.

Available Presets

Inside ships with several preset base16 themes ready to copy into your _config.inside.yml.

Atelier Dune Light (default)

highlight:
  - '#f8f8f8' - '#e8e8e8' - '#d8d8d8' - '#b8b8b8'
  - '#585858' - '#383838' - '#282828' - '#181818'
  - '#ab4642' - '#dc9656' - '#f7ca88' - '#a1b56c'
  - '#86c1b9' - '#7cafc2' - '#ba8baf' - '#a16946'

Tomorrow Night (dark)

highlight:
  - '#1d1f21' - '#282a2e' - '#373b41' - '#969896'
  - '#b4b7b4' - '#c5c8c6' - '#e0e0e0' - '#ffffff'
  - '#cc6666' - '#de935f' - '#f0c674' - '#b5bd68'
  - '#8abeb7' - '#81a2be' - '#b294bb' - '#a3685a'

Harmonic16 Light

highlight:
  - '#f7f9fb' - '#e5ebf1' - '#cbd6e2' - '#aabcce'
  - '#627e99' - '#405c79' - '#223b54' - '#0b1c2c'
  - '#bf8b56' - '#bfbf56' - '#8bbf56' - '#56bf8b'
  - '#568bbf' - '#8b56bf' - '#bf568b' - '#bf5656'

For the full catalog of base16 themes, visit chriskempson/base16.

See Appearance → for full configuration instructions.

Link:
https://blog.oniuo.com/theme-inside/highlighting-palette/

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