I just pushed another smallish update to the site.

Changes Include:

Theme selection now stored client side so after refreshing the page you will still have the same theme style that you prefer.

Chatroom:
 -Fixed bug on the language specific chat rooms that required a refresh to see new messages in the room.
 -Added a missed message counter badge on each chat/pm tab.
 -Added a sound notification if a new message comes in on one of the tabs that you have open but not focused.
 -Added a tooltip on the chat message date to see the full JSON date of the message where previously it only showed the hh:mm:ss
 -Added a history feature to the text input for chat. You can now use the up and down arrows to go through the last 10 messages that you sent (session specific)

Still working on many more things, stay tuned!