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Dark Matter Code

v0.0.8 · by Amirali Beigi · added 3 November 2026

Dark themes for the night owls — Mars (warm), Neptune (cool) and Pluto (true black).

Themes
Install in Forge SuperView the source

How to install

With Forge Super installed, the button above opens the app on this extension, where you press Install. Nothing is installed until you do.

You can also open the Extensions panel in the app and search for Dark Matter Code. The extension's id is dark-matter-code-theme.

Don't have Forge Super yet? Download it here.

README

From the extension's repository, written by its authors and not by Mentenaz. See the source.

Dark Matter Code for Zed

The Zed port of Dark Matter Code, following Zed's v0.2.0 theme schema.

Themes

All seven variants live in themes/dark-matter-code.json:

Mars — warm, reddish dark

  • Dark Matter Code Mars Medium — #141414
  • Dark Matter Code Mars Soft — #1c1c1c
  • Dark Matter Code Mars Hard — #0c0c0c

Neptune — cool, blueish dark

  • Dark Matter Code Neptune Medium — #1A1B26
  • Dark Matter Code Neptune Soft — #1F2031
  • Dark Matter Code Neptune Hard — #16161E

Pluto — true black

  • Dark Matter Code Pluto — #000000, OLED-friendly

Syntax colours are identical across every variant; only the UI chrome changes.

Use it right now (no extension needed)

Drop the theme file into Zed's user themes directory:

cp themes/dark-matter-code.json ~/.config/zed/themes/dark-matter-code.json

Zed picks it up live. Open the theme selector (cmd-k cmd-t) and choose a variant.

Install as a dev extension

  1. In Zed, run zed: install dev extension from the command palette.
  2. Select this zed/ directory.
  3. Pick a variant from the theme selector.

Publishing to the Zed extension gallery

The extension lives in this zed/ subdirectory of the main repository; Zed's extensions.toml supports a path field, so no separate repository is needed.

  1. Fork zed-industries/extensions and clone it: 
    git clone https://github.com/<you>/extensions
cd extensions
git submodule init && git submodule update
  2. Add this repository as a submodule (HTTPS, not SSH): 
    git submodule add https://github.com/amiralibg/Dark-Matter-Code.git extensions/dark-matter-code-theme
  3. Add an entry to extensions.toml: 
    [dark-matter-code-theme]
submodule = "extensions/dark-matter-code-theme"
path = "zed"
version = "0.0.8"
  4. Run pnpm sort-extensions, commit, and open a PR.

For each release: bump version in zed/extension.toml, push, then update the submodule pointer and the version in extensions.toml via a new PR.

The extension id is dark-matter-code-theme because Zed requires theme extensions to carry theme in their id.