@rfischmann –
I just pushed a small release that adds two options: one to hide the lightbox panel entirely, and one to set it so the panel is closed by default and thus less intrusive.
You can find both by going to Lightbox > Miscellaneous (assuming you are using Classic, V2, or Legacy lightboxes). At the bottom of that section, you’ll find two new checkboxes.
In a later release, I will make it so both of those options can be updated directly from the lightbox panel while editing a page or post as well (ie, you’ll see links to ‘close this panel’ or ‘hide this panel’ within the panel.
For now, I did leave the orange accent on the top of the Lightbox panel. I may leave it there for a month or so to ensure people realize the new panel exists, and then remove the extra highlighting.
Thanks for taking time to offer your feedback.