skyhighNL, it’s very likely that the modification will be overwritten in a plugin update.
I don’t know how to solve the issue without editing a core file, so I think we should wait for a permanent solution from the plugin’s developer.
You can edit the following file: responsive-lightbox/js/front.js
Near the end of the file, at the array of options (line 227), add these lines of code:
,
wrapper : {
onClick: "close"
}
