42KM theme for Visual Studio Code

A Marathon (video game) inspired dark color theme for Visual Studio Code.

Installation

1. Install from the Extension Marketplace
   • Alternatively, press CTRL+p to open the "Quick Open" menu, and run the following command: ext install Andornaut.42km-theme
2. Select: File > Preferences > Themes > Color Theme > 42KM

Colors

UI

Color	Hex	Usage
Lime Green	#c2fe0b	Primary accent — cursor, links, active line number, focus border, git modified
Blue-Purple	#4034c0	Active tabs, breadcrumb background, editor selection
Purple	#7c48e2	Activity bar active, toolbar hover
Bright Green	#00f080	Find matches, git added, scrollbar active/hover, sash hover
Hot Pink	#ff69b4	Bracket match, match highlight borders, peek view border, debugging status bar
Steel Blue	#4893c2	Title bar, info foreground, git untracked
Orange	#ff5c00	Warnings, breakpoints
Red	#c4071c	Errors, git deleted
Near White	#f1f1f1	Foreground text
Silver	#c0c8cf	Status bar, breadcrumb foreground, inactive tab foreground
Sage	#93ada0	Activity bar, scrollbar background, sidebar header text
Slate	#687880	Borders, git ignored
Dark Gray	#545860	Inactive elements, gutter, tab headers, ruler, inactive tabs, status bar foreground
Charcoal Gray	#404346	Hover backgrounds, panel
Dark Teal	#353a3c	Editor background, sidebar
Near Black	#282a2c	Inputs, lists, menus, line highlight, drop backgrounds, line numbers

Syntax

This color theme uses Solarized Dark tokenColors.

Color	Hex	Usage
Green	#859900	Keywords, variable start, library class/type, diff inserted
Cyan	#2AA198	Strings, markup inline
Blue	#268BD2	Variables, functions, tags, headings, diff header
Violet	#6C71C4	Inherited class
Magenta	#D33682	Numbers, markup styling
Orange	#CB4B16	Class names, constants, exceptions, diff changed
Yellow	#B58900	Built-in constants, markup lists
Red	#DC322F	Errors, regexp, invalid, diff deleted
Light Gray	#93A1A1	Storage, tag attributes
Base0	#839496	Default foreground
Dark Gray	#586E75	Comments, tag delimiters

Color swatches are generated by color-swatches-action.

Developing

Testing

1. Press F5 to launch an Extension Development Host window.

Publishing

A Release workflow runs on every push to main and on version tags (v*). It packages the extension into a .vsix file and publishes it as a GitHub release.

To publish to the VS Code Marketplace:

• Publishing extensions
• Get a Personal Access Token — set Organization to All accessible organizations
• Manage publishers and extensions

npm version patch  # or minor, major
git push && git push origin <tag>  # e.g. git push origin v0.2.1
npx vsce publish

Guides

• Extension guide: color theme
• colorRegistry.ts — authoritative source for all valid theme color keys
• Theme color documentation