iTerm2 to Ghostty Color Converter

README.md

iTerm2 to Ghostty Color Converter

This is a Python script that converts iTerm2 theme files to Ghostty color format. It takes an iTerm2 theme file (usually an .itermcolors file) and converts the colors into the format used by Ghostty, which can be used in your terminal configurations.

Usage

script.py [-h] -f FILE [-o OUTPUT]

Options:

• -h, --help
  Show this help message and exit.

• -f FILE, --file FILE
  The iTerm2 theme file path (required).

• -o OUTPUT, --output OUTPUT
  The output file path where the converted colors will be saved. If not provided, the result will be printed to the terminal (stdout).

Example

python script.py -f your-theme.itermcolors -o my-theme

This is a re-write of this original ruby script in Python, using GPT.

script.py

#!/usr/bin/env python3

import argparse
from pathlib import Path
from plistlib import load as load_plist
from string import Template
from typing import Dict, Iterator, Tuple

BLUE = "Blue Component"
GREEN = "Green Component"
RED = "Red Component"

GHOSTTY_TEMPLATE = """
palette = 0=$ansi0
palette = 1=$ansi1
palette = 2=$ansi2
palette = 3=$ansi3
palette = 4=$ansi4
palette = 5=$ansi5
palette = 6=$ansi6
palette = 7=$ansi7
palette = 8=$ansi8
palette = 9=$ansi9
palette = 10=$ansi10
palette = 11=$ansi11
palette = 12=$ansi12
palette = 13=$ansi13
palette = 14=$ansi14
palette = 15=$ansi15
background = $background
foreground = $foreground
cursor-color = $cursor
selection-background = $selection_bg
selection-foreground = $selection_fg
"""


def dict_from_plist_file(plistfile: Path) -> Dict:
    with open(plistfile, "rb") as pf:
        return load_plist(pf)


def rgb_to_hex(r: int, g: int, b: int) -> str:
    return f"#{r:02X}{g:02X}{b:02X}"


def component_to_int(c: str) -> int:
    return int(float(c) * 255.0)


def key_color_pairs(plistfile: Path) -> Iterator[Tuple[str, str]]:
    for key, components in dict_from_plist_file(plistfile).items():
        r = component_to_int(components[RED])
        g = component_to_int(components[GREEN])
        b = component_to_int(components[BLUE])
        yield (key, rgb_to_hex(r, g, b))


def iterm2ghostty_colors(plistfile: Path) -> Dict[str, str]:
    colors = dict(key_color_pairs(plistfile))
    return {
        "ansi0": colors.get("Ansi 0 Color", ""),
        "ansi1": colors.get("Ansi 1 Color", ""),
        "ansi2": colors.get("Ansi 2 Color", ""),
        "ansi3": colors.get("Ansi 3 Color", ""),
        "ansi4": colors.get("Ansi 4 Color", ""),
        "ansi5": colors.get("Ansi 5 Color", ""),
        "ansi6": colors.get("Ansi 6 Color", ""),
        "ansi7": colors.get("Ansi 7 Color", ""),
        "ansi8": colors.get("Ansi 8 Color", ""),
        "ansi9": colors.get("Ansi 9 Color", ""),
        "ansi10": colors.get("Ansi 10 Color", ""),
        "ansi11": colors.get("Ansi 11 Color", ""),
        "ansi12": colors.get("Ansi 12 Color", ""),
        "ansi13": colors.get("Ansi 13 Color", ""),
        "ansi14": colors.get("Ansi 14 Color", ""),
        "ansi15": colors.get("Ansi 15 Color", ""),
        "background": colors.get("Background Color", ""),
        "foreground": colors.get("Foreground Color", ""),
        "cursor": colors.get("Cursor Color", ""),
        "selection_bg": colors.get("Selection Color", ""),
        "selection_fg": colors.get("Selected Text Color", ""),
    }


def main():
    parser = argparse.ArgumentParser(
        description="Convert iTerm2 themes to Ghostty colors."
    )
    parser.add_argument(
        "-f", "--file", required=True, type=Path, help="The iTerm2 theme file path"
    )
    parser.add_argument("-o", "--output", help="Output file path (defaults to stdout)")
    args = parser.parse_args()

    ghostty_colors = iterm2ghostty_colors(args.file)

    template = Template(GHOSTTY_TEMPLATE)
    result = template.substitute(ghostty_colors)

    if args.output:
        with open(args.output, "w") as f:
            f.write(result)
    else:
        print(result)


if __name__ == "__main__":
    main()

Usage

curl -L -o script.py https://gist.githubusercontent.com/farhaduneci/cdcac037bbc8315d817866808b022911/raw/043976fec70dd9242b04a4218ea0595084cd4bbe/script.py
python3 script.py -f <input.itermcolors> -o my-theme

I've created a browser-based iTerm2 to Ghostty config converter that supports profile files:
https://moshen.github.io/iTerm2-to-Ghostty-Config-Converter/

Very cool!