is-dark-mode

#!/bin/bash

set -u -o pipefail

# https://flatpak.github.io/xdg-desktop-portal/#gdbus-org.freedesktop.portal.Settings
if command -v dbus-send >/dev/null; then
    if setting=$(dbus-send \
                    --session \
                    --print-reply=literal \
                    --reply-timeout=1000 \
                    --dest=org.freedesktop.portal.Desktop \
                    /org/freedesktop/portal/desktop \
                    org.freedesktop.portal.Settings.Read \
                    string:'org.freedesktop.appearance' \
                    string:'color-scheme' | awk '{ print $4 }'); then
        if [[ $setting == 1 ]]; then
            exit 0
        else
            exit 1
        fi
    fi
fi

if command -v gsettings >/dev/null; then
    [[ $(gsettings get org.gnome.desktop.interface color-scheme) == \'prefer-dark\' ]]
elif command -v defaults >/dev/null; then
    [[ $(defaults read -g AppleInterfaceStyle 2>/dev/null) == "Dark" ]]
else
    exit 0
fi