WordPress Dev – How to add a new admin color theme in WordPress

You can download a version of the child theme here.

https://github.com/immanuelsun888/NSS_twentyfifteen-child.git

The code to add in functions.php is here:

    /********************************************/
    /* ! Add New Color Scheme */
    /*******************************************/
    function add_color_schemes()
    {
        $dir = get_stylesheet_directory_uri();

        wp_admin_css_color( 
            'kingdom',
            'Kingdom',
            $dir . '/admin/colors/kingdom/colors.css',
            array('#CD9241', '#749367', '#79A736', '#EA5D24')
        );
    }

    add_action( 'admin_init', 'add_color_schemes' );