halo-theme-hao/templates/assets/js/halo.js

let halo = {
    darkComment: () => {
        if (document.querySelector('#comment div').shadowRoot.querySelector('.halo-comment-widget').classList != null) {
            let commentDOMclass = document.querySelector('#comment div').shadowRoot.querySelector('.halo-comment-widget').classList
            if (commentDOMclass.contains('light'))
                commentDOMclass.replace('light', 'dark')
            else
                commentDOMclass.replace('dark', 'light')
        }

    }
}