Some features of Colorfy require you to be logged in to Facebook. Commenting in images, for example, is only possible while you're logged in.
Connecting your Colorfy account to Facebook will grant you the full Colorfy experience! Some of the perks you will get from connecting your Facebook account are:

- Have your name when you publish artworks;
- See the comments on your artworks;
- Leave comments on other users' artworks;
- See who loved your artworks;
- See who commented on your artworks;
- See your Facebook friends' artworks;
- See who loved other users' artworks.

And you will get Floral Volume 4 for free if you log in with Facebook for the first time!