I have a quick question. If I have my site set as HiDPI (2x) does the images I upload in widgets like slideshow lightbox and compositions ara in HiDPI??
If your original images have the required HiDPI size (2x pixel dimensions), of course!
If your images are valid HiDPI images is visible by the „2x“ label to the right of the image in your „Assets“ panel.
Oh you are right, I thought it wouldn't appear in assets, thanks a lot