How to close the chat bar in game

[Itsuki00]

Okay how to close the annoying chat bar that is almost over the whole screen,i tried every button,but nothing workss

[Nova]

You can't close it, however with the last patch Vreg added in a command so people could scale their UI size down.

So you might be able to mess around with that.
The in-game command was /SetUISize (then enter a number from 0.5-1) 0.5 being half of the current size, so it would be really small.