<?php // =============== Twenty twenty====================== . $current_theme = wp_get_theme(); if ( 'twentytwenty' == $current_theme->template ) { add_filter( 'body_class', 'ssb_add_body_class' ); } /** * Add special class. * * @return void */ function ssb_add_body_class( $classes ) { $classes [] = 'ssb-twenty-twenty'; return $classes; }