LG G3 - What good does it do to "Star" a photo while reviewing them?

[outterspacedroid]

After shooting a bunch of pictures I want to sort through them and keep only the ones I want. I thought by clicking on the "star" icon while reviewing the pic would help sort through them by distinguishing the starred pictures from the rest but the star does not show up in the list or grid view so I don't know which pictures to delete and which to save. Exactly what is the "star" icon for?

 

[derdjango]

It does. In the gallery app you can choose Favorites when you click on the top left.