https://www.joomunited.com/wordpress-products/wp-media-folder/wp-media-folder-gallery-addon

WP Media Folder Gallery Addon has a plenty of themes for your galleries and many options to play with:A masonry theme to create wonderful photo wallsA portfolio theme to complete image with title and textsA square grid theme to display nice hover effects2 sliders theme, one with a 3D effect and another multiline optimizedA material design styleA default WordPress like themeCustom grid

Changelog

* Add : Option to list its sub-galleries, using the sub-galleries covers as image

* Add : Possibility to disable overlay in each gallery

* Add : Navigation cover option: Select the image size in galleries navigation tree (small, medium, large)

* Fix : Gallery cover image in backend