Bamboo MCR

Bamboo Gallery replaces the default WordPress gallery with a lightwight, responsive gallery that provides a simple full-screen lightbox.
Usage
Simply insert a gallery into a page or post as you normally would. Bamboo Gallery will take over and display your gallery using it’s own responsive style.

Bamboo Gallery

Replaces the default WordPress gallery with a responsive lightbox style gallery.

Bjørn Johansen

Theme for the imageLightbox plugin: https://wordpress.org/plugins/imagelightbox/

imageLightbox Smooth theme

Smooth theme for the imageLightbox plugin

Bamboo Gallery vs imageLightbox Smooth theme