It's been 20 years since the first Harry Potter book was published, and to celebrate Facebook has added a magical Hogwarts-themed "easter egg" to its status updates and comments.
If you type in any of the Hogwarts houses, the names appear in the houses' colors — red for Gryffindor, green for Slytherin, blue for Ravenclaw and yellow for Hufflepuff. Once posted, if you click on any of the names a magic wand appears and casts a spell.
Harry Potter's name also gets a colorful update, appearing in Gryffindor colors of course, but other key characters have been overlooked.
In other news, Facebook now has a rainbow pride reaction — but you might not be able to use it.
