Add Beaver Themer's location setting for Singular template as a body class of single-post_type to help with styling the Themer Layout

beaver-themer-location-singular-class.php

<?php

add_filter('body_class', function ($classes) {
    if (is_singular('fl-theme-layout')) {
        $current_post_id = get_the_ID();
        $layout_type = get_post_meta($current_post_id, '_fl_theme_layout_type', true);
        $location_settings = get_post_meta($current_post_id, '_fl_theme_builder_locations', true);

        // Proceed only if the layout type is 'singular'
        if ($layout_type === 'singular' && !empty($location_settings) && is_array($location_settings)) {
            foreach ($location_settings as $location) {
                // Extract the post type by removing 'post:' for each location.
                $post_type = str_replace('post:', '', $location);
                $classes[] = 'single-' . sanitize_html_class($post_type);
            }
        }
    }

    return $classes;
});