WordPress Version: 6.3
/**
* Loads classic theme styles on classic themes in the frontend.
*
* This is needed for backwards compatibility for button blocks specifically.
*
* @since 6.1.0
*/
function wp_enqueue_classic_theme_styles()
{
if (!wp_theme_has_theme_json()) {
$suffix = wp_scripts_get_suffix();
wp_register_style('classic-theme-styles', '/' . WPINC . "/css/classic-themes{$suffix}.css");
wp_style_add_data('classic-theme-styles', 'path', ABSPATH . WPINC . "/css/classic-themes{$suffix}.css");
wp_enqueue_style('classic-theme-styles');
}
}