Woo! New features!
It's definitely nice to have the buttons now to insert elements as opposed to just knowing the code to do em, so I like that, and also that you can hide that bar if you want.
I think the background color should be changed to white to make text more legible, and if you still want to use grey as a bg color, maybe try it in the bar above the chatbox.
Also- what does the email icon do?