omarchy-theme-crystal

A dark theme for Omarchy built on Kanso Zen backgrounds with Kanagawa-warm foreground for readability.

Install

omarchy-theme-install https://github.com/aldochaconc/omarchy-theme-crystal

Color Architecture

colors.toml is the single source of truth for all colors across the entire ecosystem:

colors.toml
    ├─→ kitty, alacritty, ghostty    (auto-generated via Omarchy .tpl templates)
    ├─→ mako, walker, hyprland,
    │   hyprlock, chromium            (auto-generated via Omarchy .tpl templates)
    ├─→ waybar.css                    (custom override with extra CSS vars)
    ├─→ swayosd.css                   (custom override with styling rules)
    ├─→ btop.theme                    (custom gradient assignments)
    ├─→ rofi.rasi                     (custom color palette, no template exists)
    └─→ neovim.lua                    (reads colors.toml at startup, maps to Kanso palette)

Files not present in this repo are auto-generated by Omarchy's template engine (omarchy-theme-set) from .tpl templates + colors.toml. Custom overrides are only provided where the template output is insufficient.

Ecosystem

App	Theme source	Config
Kitty	colors.toml via template	(auto-generated)
Alacritty	colors.toml via template	(auto-generated)
Ghostty	colors.toml via template	(auto-generated)
Mako	colors.toml via template	(auto-generated)
Walker	colors.toml via template	(auto-generated)
Hyprland	colors.toml via template	(auto-generated)
Hyprlock	colors.toml via template	(auto-generated)
Chromium	colors.toml via template	(auto-generated)
Neovim	colors.toml → Kanso Zen palette	neovim.lua
VS Code	Kanso Zen extension	vscode.json
Waybar	Custom CSS vars	waybar.css
SwayOSD	Custom styling	swayosd.css
Btop	Custom gradients	btop.theme
Rofi	Custom palette	rofi.rasi

Colors

Based on Kanso Zen backgrounds with Kanagawa foreground warmth.

Role	Hex	Note
Background	#090E13	Kanso Zen (zenBg0)
Foreground	#dcd7ba	Kanagawa warm — better readability
Accent	#8BA4B0	Kanso blue3
Cursor	#c8c093	Kanagawa warm
Selection BG	#24262D	Kanso zenBg2

Design Decisions

• Kanso Zen backgrounds — deep, rich darks (#090E13, #1C1E25, #22262D)
• Kanagawa foreground — warm golden #dcd7ba instead of Kanso's cooler #C5C9C7, chosen for readability
• Unified via colors.toml — Neovim reads the same file as terminal templates, eliminating color drift
• Minimal overrides — only ship files where templates are insufficient; let Omarchy generate the rest