So, I'm mostly going off of my memory here, since the last update to the demo was over 3 years ago now, if I recall correctly. However, if I remember correctly, I think I had removed the gallery from the demo because back then, I had considered the lack of images not to be needing a gallery. So I think the gallery is gone in the later versions of the demo.
However, I have plans to update the demo eventually once more images have been completed, to sort of give a final version of the demo since a lot of new features and updates have come even to Chapter 2 since the last update to the demo.