This plugin disables the "Player Joined The Game" and the "Player Left The Game" Messages for everyone who is not staff. It will also make it so when the staff members chat there chat will be gold and bold.
-How to use this plugin-
Give all of the staff groups the 'staff.checker' permission.
That's it!
I will be updating this plugin, so if you have any features you would like to see added tell me in the comments!