How to Send Profile Pics in Facebook Chat

Facebook is rolling out new features continuously. Recently they overhauled the complete profile view by enabling Timeline. Now they also enabled images in Facebook chat. These images mean you can send profile pic of a Facebook user in chat. The user may or may not be in your friend list. You need to have the User Id or Username of the user.
How to Send Profile Pics in Facebook Chat:

How to Send Colorful Text in Facebook Chat

Facebook has restricted its user to chat in black text due concerns of server overloading and speed. But now you are no longer bound to chat in black text. There are some special codes for you that empower you to send colorful text in chat. This trick is solely based on the fact that when profile ID’s are inserted in between square brackets, it automatically transforms into the profile picture. These ID’s are specially created for this purpose.

You can also send messages in colorful text but these codes will not work in Status update. This will also not work if the other person is using chat from his mobile.