Howdy!
Yes, on Retina it’s fine, but most of my readers have still displays of 1920×1080, so for them there should be normal images served. And in terms of thumbnails in galleries it it fine.
The problem is that in Lightbox it’s always full size, while I would prefer it to be Large. Then smaller screens would be served Large and save bandwidth, while for Retina it would probably take 2x Large, so original size.
Unfortunately I tried lots of functions to modify, but most of them did not work or simply were causing my whole site to break down.
I could go gallery by gallery and change links in html… but well, I look for global solution ??
Thanks again!