How the chatbox visually looks, and how the player interacts with it has not changed much over the years. Command lines are shoehorned into the same functionality. WIth jj2+ becoming bigger and bigger and with more commands and shortcut oddities, it can get quite daunting.

Prefix and colouring
Starting off the chat box with "/" changes the prefix "Chat:" to "Command:" and changes the prefix, chatbox to yellow.It can be backspaced to return to regular "Chat:"
- Starting off the chatbox with ">" changes the prefix "Chat:" to "Admin Chat:" and changes the prefix, chatbox and sent chat to green. Unlike commands, also removes the ">" from the typed box. It can be backspaced to return to regular "Chat:"
- Starting off the chatbox and chat with "/me" changes the prefix "Chat:" to "#[Playername]" and changes the prefix, chatbox and sent chat (This latter one already the case) to lightblue. Unlike commands, also removes the "/me" from the typed box. It can be backspaced to return to regular "Chat:"