When you view a file, it would be great to be able to view all picture information such as metadata etc. 

There is a pane called information that lists a few things and I have downloaded several metadata programs and none of them display all information that Photo gallery collects by the user such as Captions, multiple or single descriptions, GPS data. It would be good to see a complete list of data information for any given picture in the software.

I did look for Captions, Descriptions in a png file that is stored by other software and they say that file format does not contain metadata information but yet Photo gallery is storing it somewhere when you add those items and face detection to a picture. 

I hope my request is making sense - thanks in advance.