Extract and save default Adwaita shell theme for GNOME

adwaita-shell.sh

#!/usr/bin/env bash
#
# adwaita-shell - extracts and saves default Adwaita shell theme for GNOME.
# Requires gnome-tweaks and User Themes extension.
# Also sudo apt install font-cantarell for default fonts.
# sorebit, https://github.com/sorebit
#
# Note: This seems to be deprecated since on new GNOME even Ubuntu allows you to pick the default accent color for Adwaita.

# Safety
set -e

# Setup
theme_dir="$HOME/.themes/Adwaita/gnome-shell/"
gres_path="/usr/share/gnome-shell/gnome-shell-theme.gresource"
gnome_theme_dir="/org/gnome/shell/theme"
css_file="gnome_shell.css"

# Execute
mkdir -p "${theme_dir}"
gresource extract "${gres_path}" "${gnome_theme_dir}/${css_file}" > "${theme_dir}/${css_file}"