Hide/shrink banner in chat window
There is this huuuuuuge banner on top of the chat window where you can read the name of your chat partner next to a giant status symbol. When editing themes, you may change background or text colour of this banner, but there is no way of hiding it, even "compact view" of the chat window does not have this effect.
For people stuck with tiny displays, like me, this is kind of annoying :-) For me, it is totally sufficient to read my chat partner's name in the title bar or in the tab header, but shrinking that giant status symbol or even hiding it and fitting the banner area to the contact's name would also do. Please don't laugh about this request ;-) and have a nice day!