   .forEach(function (node) { node.disabled = !node.disabled; });

        let toggleThemeButton = document.getElementById("toggleThemeButton");

        if (darkTheme) {
            toggleThemeButton.classList.remove("fa-sun-o");
            toggleThemeButton.classList.add("fa-moon-o");
        } else {
            toggleThemeButton.classList.remove("fa-moon-o");
            toggleThemeButton.classList.add("fa-sun-o");
        }

        document.querySelectorAll("img.alternate").forEach(function (node) {
