In reply to Matt C.

The thing about these kinds of lightbox galleries is that they're frequently not accessible. I haven't tested this particular one, but any time a pop up or modal opens screen reader users need to be warned, the focused should be trapped in the modal, and keyboard users need a way to close it. From the perspective of accessibility, opening screenshot images directly on click rather than in a lightbox is actually better. It means that if a visually impaired person accidentally triggers the image, they can easily return to the plugin page with the back button in their browser. If the image opened in a lightbox it would not be as easy for them to recover (without a lot of attention is put into accessibility of the lightbox). This is one instance when it's probably worth the inconvenience to us sighted/mouse users - we actually made the same decision with the screenshots on our plugin website because of accessibility.