Astra_LearnDash::content_layout( string $layout )

		public function content_layout( $layout ) {

			if ( is_singular( 'sfwd-courses' ) || is_singular( 'sfwd-lessons' ) || is_singular( 'sfwd-topic' ) || is_singular( 'sfwd-quiz' ) || is_singular( 'sfwd-certificates' ) || is_singular( 'sfwd-assignment' ) ) {

				$learndash_layout = astra_get_option( 'learndash-content-layout' );

				if ( 'default' !== $learndash_layout ) {
					$layout = $learndash_layout;
				}

				$learndash_layout = astra_get_option_meta( 'site-content-layout', '', true );

				if ( 'default' !== $learndash_layout && ! empty( $learndash_layout ) ) {
					$layout = $learndash_layout;
				}
			}

			return $layout;
		}