This filter is used in JaW Gallery Simple and Horizontal. You can change its default item’s name, which is simple Items (Items are applicated if gallery contains photos and videos) or Photos (Photos are applicated if gallery contains only photos). function my_custom_gallery_items_name($title){ return "images"; } add_filter('jaw_gallery_box_default_items_name', 'my_custom_gallery_items_name'); The result looks like this: List of all