[WP] List of supported variables for "Flickr or 500px gallery"

{{image_tag}}
HTML tag for RoyalSlider image (it's IMG tag for normal images and A tag for lazy-loaded), includes alt tag, video attribute and big image attribute (if availbable). Read more in docs.

{{image_url}}
URL to main image

{{large_image_url}}
URL to big image.

{{thumbnail}}
Returns thumbnail (rsTmb) RoyalSlider element. Read more in docs.

{{thumbnail_url}}
URL to thumbnail image

{{title}}
Image title