When I am reviewing cards in the queue and get to an image occlusion that I made, most of the time the image shows up off-center, meaning I have to spend that extra time to scroll down and center my image before proceeding. As you can image, over time this will add up to quite a bit of extra time.
Ideally, image occlusion cards should be programmed to show up in the queue as centered as possible to prevent as much friction to the review process as possible.
