public static function process_deprecated_saves( $post_id, $post ) {

		$field_prefix = 'popup_theme_';

		$old_fields = (array) apply_filters( 'popmake_popup_theme_fields', array(
			'overlay'   => array(),
			'container' => array(),
			'title'     => array(),
			'content'   => array(),
			'close'     => array(),
		) );

		foreach ( $old_fields as $section => $fields ) {
			$section_prefix = "{$field_prefix}{$section}";
			$meta_values    = array();

			foreach ( $fields as $field => $args ) {
				$field_name = "{$section_prefix}_{$field}";
				if ( isset( $_POST[ $field_name ] ) ) {
					$meta_values[ $field ] = apply_filters( 'popmake_metabox_save_' . $field_name, $_POST[ $field_name ] );
				}
			}

			update_post_meta( $post_id, "popup_theme_{$section}", $meta_values );
		}

		// TODO Remove this and all other code here. This should be clean and all code more compartmentalized.
		foreach ( self::deprecated_meta_fields() as $field ) {
			if ( isset( $_POST[ $field ] ) ) {
				$new = apply_filters( 'popmake_metabox_save_' . $field, $_POST[ $field ] );
				update_post_meta( $post_id, $field, $new );
			} else {
				delete_post_meta( $post_id, $field );
			}
		}
	}