Reviews from Projects allows you to suggest changes to your Library Entries as you work through a Project. Changes suggested through your Projects are stored on the Reviews from Projects page, allowing you to access and approve (or reject) content when the time is right for you.
Suggested Entries fall into one of two categories, depending on how the Project Entry was answered.
Existing Entries
Existing Entries were answered in your Project using either Magic or Library Search, then further modified from the original Library Entry text.
By default, Existing Entries will display the differences between the Library Entry as it lives in your Library, and the modified version of that Entry used to answer your Project Entry. Additions to the Library Entry will be indicated in green, and removed content will be highlighted in red and struck through.
New Entries
New Entries were answered manually in your Project (rather than using Magic or Library Search).