ztheme

A fast, batteries-included Zsh prompt with asynchronous Git and runtime context, flexible themes, syntax highlighting, and autosuggestions.

Your directory and prompt appear immediately. Git state and language versions arrive in the background without blocking input.

Highlights

• Responsive prompt with asynchronous Git and runtime detection
• Git state powered by gitstatusd, without implicit fetches
• Themes for layout, colors, symbols, spacing, and input highlighting
• Automatic project detection for Rust, Python, Node.js, Go, Java, and more
• Sensible Zsh history, completion, navigation, and key-binding defaults
• No telemetry or network access during normal prompt use

Install

ztheme supports Zsh on macOS and Linux. A Nerd Font is recommended for the default symbols.

cargo install ztheme --locked
ztheme setup

Add ztheme near the end of .zshrc:

eval "$(ztheme init zsh)"

Start a new shell:

exec zsh

ztheme setup installs the required Git helper and can also install zsh-syntax-highlighting and zsh-autosuggestions. Use ztheme setup --yes for unattended setup.

Build from source with Rust 1.97 or newer:

git clone https://github.com/alexykn/ztheme.git
cd ztheme
cargo install --locked --path . --root ~/.local
ztheme setup

Ensure ~/.local/bin is on PATH.

Native archives for Apple Silicon, Intel macOS, x86_64 Linux, and arm64 Linux are available on the Releases page. Verify the archive against SHA256SUMS, place ztheme on PATH, and run ztheme setup.

Themes

Explore available themes:

ztheme theme list

Catppuccin Mocha is selected by default. Vesper is bundled as an alternative:

ztheme theme apply vesper

Custom themes live in:

${XDG_CONFIG_HOME:-$HOME/.config}/ztheme/themes/

The active theme is selected in ${XDG_CONFIG_HOME:-$HOME/.config}/ztheme/config.toml:

version = 1
theme = "my-theme"

Custom themes inherit every omitted value from Catppuccin Mocha. Save one as themes/my-theme.toml; a useful theme can stay small:

version = 1

[palette]
path = "#89b4fa"
muted = "#7f849c"
accent = "#f9e2af"
success = "#a6e3a1"
error = "#f38ba8"

[layout]
lines = [
    ["directory", "git", "python", "rust"],
    ["character"],
]
right = ["status"]

[segments.git]
prefix = "on "
symbol = " "

[segments.character]
success = "❯"
error = "❯"
spacing = { after = 1 }

Apply it, then use the edit-and-reload loop:

ztheme theme apply my-theme
ztheme theme edit my-theme
ztheme theme reload

Layouts may use directory, git, character, status, and the runtime segments python, perl, java, kotlin, scala, rust, go, bun, deno, node, ruby, php, dotnet, c, cpp, swift, and lua.

Colors accept palette names or #RRGGBB. Styles support foreground, background, bold, underline, and standout.

See the complete theme schema, including every layout and segment key.

Syntax highlighting

Syntax highlighting is part of the theme, not a separate color configuration. Run ztheme setup to install the managed zsh-syntax-highlighting integration.

Catppuccin Mocha already styles commands, arguments, paths, options, quotes, errors, and shell syntax. Override only what your theme needs:

[input]
autosuggestion = { foreground = "muted" }
completion = { foreground = "accent" }

[input.syntax]
command = { foreground = "success", bold = true }
builtin = { foreground = "success" }
alias = { foreground = "success" }
path = { foreground = "path", underline = true }
single-hyphen-option = { foreground = "text" }
double-hyphen-option = { foreground = "text" }
single-quoted-argument = { foreground = "accent" }
double-quoted-argument = { foreground = "accent" }
comment = { foreground = "muted" }
unknown-token = { foreground = "error", bold = true }

Every entry under input.syntax is optional and uses the same style fields as prompt segments. Set a style to "none" to disable it explicitly:

[input.syntax]
cursor = "none"

Supported names follow zsh-syntax-highlighting's main, brackets, cursor, line, and root highlighters. The built-in themes/catppuccin-mocha.toml is the complete reference and a good starting point for fine-grained overrides.

See syntax highlighting and input schema for the full list of accepted syntax-style names and configuration keys.

Shell defaults

ztheme provides a practical interactive baseline:

• persistent, deduplicated shared history
• cached, case-insensitive completion with hidden files
• prefix-aware Up and Down history search
• common Home, End, Delete, word, and arrow-key bindings
• directory-stack navigation and interactive comments
• asynchronous autosuggestions with Right Arrow, End, or Ctrl-Space to accept

These are ordinary Zsh settings. Put overrides after initialization and your .zshrc remains authoritative:

eval "$(ztheme init zsh)"

bindkey -v
unsetopt AUTO_CD
HISTSIZE=50000

To use only the prompt and input integrations:

ZTHEME_SHELL_DEFAULTS=0
eval "$(ztheme init zsh)"

Set ZTHEME_HISTORY_DEFAULTS=0 instead to disable only history defaults. ztheme does not manage PATH, aliases, editor selection, terminal integration, or application environment variables.

Commands

Updating and removal

Update a Cargo installation with:

cargo install ztheme --locked --force

To remove ztheme, delete the executable and its initialization line. Managed data is stored below ${XDG_DATA_HOME:-$HOME/.local/share}/ztheme, cached data below ${XDG_CACHE_HOME:-$HOME/.cache}/ztheme, and themes below ${XDG_CONFIG_HOME:-$HOME/.config}/ztheme.

Built with

• Catppuccin provides the Mocha palette used by the default theme.
• Vesper provides the palette used by the bundled Vesper theme.
• gitstatusd provides fast Git status.
• zsh-syntax-highlighting highlights commands as they are typed.
• zsh-autosuggestions provides history-based suggestions.

License

MIT. gitstatusd is a separate GPL-3.0-licensed process.