Is there a built in way within the backend admin area to have an image show in a popup/lightbox?
I built a plugin with help images and want them to show when clicked in a popup overlay / lightbox.
You can just use the built in ThickBox. Maybe not the pretties library but it does its job.
Just add the class thickbox to the link and add the image to the
Here is a simple example:
Read more about ThickBox here.