Umbra

A dark, plum-toned colour scheme with a single canonical palette (palette/umbra.toml) and Nix-generated ports for terminals, editors, browsers, and desktop apps.

Ports

App	Method
alacritty, bat, fzf, starship, tmux, xresources, neovim, oxwm	static file, generated
btop, chromium, dark-reader, discord, firefox, gtk, telegram, vimium-c, vscode	package derivation
delta, foot, ghostty, helix, kitty, lazygit, mako, swaylock, waybar	inline (home-manager module only)

See ports.md for the full wiring table.

Usage

As a flake input:

{
  inputs.umbra.url = "github:zexk/umbra";
}

Home Manager module:

{
  imports = [ umbra.homeManagerModules.default ];
  umbra.enable = true;
}

Standalone packages, e.g. the GTK theme:

nix build github:zexk/umbra#gtk

The raw palette is exposed as umbra.palette for consumption by other flakes.

Layout

• palette/umbra.toml: single source of truth for every colour
• lib/: palette helpers (flattening, ANSI ordering, hex conversion)
• ports/<app>/: per-app theme source or template
• modules/: NixOS and Home Manager modules that wire ports together