Customization options like Scale, Opacity, Image Effects, Overlay Color for Image Gallery allows enhancing the gallery look. The settings are applied to image thumbnails visible in the gallery.
The customization settings are available under Style (tab) > Thumbnail.
Scale – It allows the image to enlarge on hover and go back to normal when you move the cursor out of it.
Opacity (%) – Sets opacity for all images in the gallery.
Image Effect – They are image filter effects like Instagram. This is a unique feature with Image Gallery Widget.
Overlay Color – Adjust the overlay color for the images in the gallery.
Note: All above settings for hovered images are available for under Hover tab.