WordPress Version: 5.1
/**
* Determines whether the current request should use themes.
*
* @since 5.1.0
*
* @return bool True if themes should be used, false otherwise.
*/
function wp_using_themes()
{
/**
* Filters whether the current request should use themes.
*
* @since 5.1.0
*
* @param bool $wp_using_themes Whether the current request should use themes.
*/
return apply_filters('wp_using_themes', defined('WP_USE_THEMES') && WP_USE_THEMES);
}