https://github.com/anselmoo/caligo-vscode-theme

A dark theme for developers who code after dark 🌙
https://github.com/anselmoo/caligo-vscode-theme

dark-theme theme visual-studio-code vscode vscode-extension vscode-theme

Last synced: about 1 month ago
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A dark theme for developers who code after dark 🌙

• Host: GitHub
• URL: https://github.com/anselmoo/caligo-vscode-theme
• Owner: Anselmoo
• License: mit
• Created: 2026-02-05T06:56:08.000Z (about 2 months ago)
• Default Branch: main
• Last Pushed: 2026-02-13T22:54:56.000Z (about 1 month ago)
• Last Synced: 2026-02-14T04:20:17.327Z (about 1 month ago)
• Topics: dark-theme, theme, visual-studio-code, vscode, vscode-extension, vscode-theme
• Language: TypeScript
• Homepage: https://marketplace.visualstudio.com/items?itemName=AnselmHahn.caligo-vscode-theme
• Size: 1.27 MB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 31
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE

Awesome Lists containing this project

README

          


  



Caligo




  50 perceptually uniform dark themes built on OKLCH color science


  10 seed palettes × 5 harmony modes





  Install

  · Live Preview

  · Gallery

  · Contribute

  · Quick Start





  

    

  

  

    

  

  

    

  

  

    

  



---

## What is Caligo?

Caligo is a **professional dark theme collection** for Visual Studio Code, built on color science principles. Unlike traditional hand-picked color schemes, Caligo uses **OKLCH** — a perceptually uniform color space — to generate mathematically harmonious themes that are easy on the eyes and maintain consistent readability.

Choose from **50 carefully crafted themes**: 10 distinctive seed palettes × 5 color harmony variants.

## Why Caligo?

### 🔬 OKLCH Color Science

Traditional themes rely on trial-and-error hex codes. Caligo leverages **OKLCH** for predictable, perceptually uniform colors:

- **Consistent brightness** — Colors at equal lightness values look equally bright

- **Preserved readability** — Harmony transformations maintain contrast ratios

- **Mathematical precision** — "Colors that look equally different, are equally different"

### ✨ Key Features

- **50 themes** from 10 seed palettes × 5 color harmonies

- **High contrast** — designed with accessibility in mind using APCA-W3 contrast validation

- **Semantic highlighting** — intent-aware colors for declarations, mutations, control flow

- **Consistent syntax** — harmonized bracket pairs, git diff, and terminal colors

- **Zero configuration** — works beautifully out of the box

### 🎯 Semantic Highlighting

Beyond basic syntax colors, Caligo provides intent-based highlighting:



  

    

      

        Intent

        Purpose

        Examples

      

    

    

      

        Declaration

        Definitions

        const, function, class

      

      

        Mutation

        State changes

        =, ++, --

      

      

        Control Flow

        Logic

        if, for, return

      

      

        Data

        Values

        Literals, constants

      

    

  



*Requires language server support (TypeScript, Python/Pylance, Rust, etc.)*

## 📦 Installation

1. Open **Extensions** (`Cmd+Shift+X` / `Ctrl+Shift+X`)

2. Search for **"Caligo"**

3. Click **Install**

4. Open Command Palette → **Preferences: Color Theme** → Select any Caligo theme

Or from command line:

```bash

code --install-extension AnselmHahn.caligo-vscode-theme

```

## 🖼️ Theme Gallery



  


    

  


  

    

      

        

        
Aurora Noir

      

      

        

        
Eclipse

      

      

        

        
Mandarian

      

    

  

  


    → Browse all 50 themes

  



### Seed Palettes

Each palette is designed to evoke a distinct visual character and mood:



  

    

      

        Palette

        Character

      

    

    

      

        Aurora Noir

        Cyan-teal aurora over deep ocean

      

      

        Cinder

        Warm amber glow from smoldering embers

      

      

        Deep Sable

        Rich earth tones with deep warmth

      

      

        Eclipse

        Solar corona against void black

      

      

        Graphite Flux

        Industrial steel with electric accents

      

      

        Mandarian

        Vibrant citrus energy

      

      

        Midnight Atelier

        Artist's studio at night

      

      

        Nebula Night

        Cosmic dust and starlight

      

      

        Obsidian Glow

        Volcanic glass with inner fire

      

      

        Void Ember

        Smoldering darkness

      

    

  



Each palette has 5 harmony variants: **Balanced**, **Analogous**, **Triadic**, **Split-Complementary**, **Monochromatic**

---

## 📚 More Info

- [**Web Gallery**](https://anselmoo.github.io/caligo-vscode-theme/) — Interactive theme browser

- [**Contributing**](CONTRIBUTING.md) — Development setup & guidelines

- [**Quick Start**](QUICKSTART.md) — Developer quick start guide






  


  


  


    © 2026 Anselm Hahn. MIT Licensed.

  

  


    Built with ❤️ for developers who code after dark 🌙

  

  


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