How do I add colors to what the plugin sends to the player?

Hey, so currently I'm editing a plugin that hasn't been updated since December of 2014 or 2013 to fit what I'd like it to be. (FactionsPro is the MCPE plugin, I'm trying to make it closer to a port of the PC plugin.) All the messages sent to the player are white. I'm using the latest development build, and I'm wondering how to do color codes? Do I use & or §, then the color code, or is it different than how you do it on PC servers?

you use § and I believe you just put in next to the text and it will show

http://minecraft.gamepedia.com/formatting_codes?cookieSetup=true

Or, if your actually trying to do this in your plugin files. I suggest using

PHP:

$sender->sendMessage(TextFormat::RED."This is a red message");

Since I started developing PM plugins I've always used a special function to translate any character in MCPE color format. Initially this worked only on PM console (MCPE didn't support colors) but now it works on both MCPE and PM.
However I think that if you use § on the message you want to send, it should be automatically translated in MCPE color

Or just use the constants in the \pocketmine\utils\TextFormat class.