iterm2 profile color switcher

auto_theme_switcher.py

#!/usr/bin/env python3

# Go to Scripts > Manage > New Python Script.
# Install python runtime
# Save the script below.
# Change presets if needed.
# Debug by Scripts > Manage > Console

import asyncio
import iterm2

async def main(connection):
    app = await iterm2.async_get_app(connection)
    # The names of your desired light and dark color presets.
    # Make sure these match the names in iTerm2 exactly.
    light_preset_name = "Light Background"
    dark_preset_name = "Dark Background"

    async def set_profile_colors(theme):
        if "dark" in theme:
            preset = await iterm2.ColorPreset.async_get(connection, dark_preset_name)
        else:
            preset = await iterm2.ColorPreset.async_get(connection, light_preset_name)

        # Get all profiles and update their color presets.
        profiles = await iterm2.PartialProfile.async_query(connection)
        for partial in profiles:
            await partial.async_set_color_preset(preset)

    # Set the initial theme when the script starts.
    await set_profile_colors(await app.async_get_theme())

    # Monitor for theme changes and update accordingly.
    async with iterm2.VariableMonitor(connection, iterm2.VariableScopes.APP, "effectiveTheme", None) as mon:
        while True:
            theme = await mon.async_get()
            await set_profile_colors(theme)

if __name__ == "__main__":
    iterm2.run_forever(main)