The answer to sending a tell without color is in Bot.php
    /*
    send a tell. Set $low to 1 on tells that are likely to cause spam.
    */
    function send_tell($to, $msg, $low=0, $color=true)

Example:
$this -> bot -> send_tell($name, $msg, 0, FALSE);
To send to guild chat, change send_pgroup to send_gc, or to send to both just add a send_gc with the same syntax as send_pgroup.

You may also want to add commands to the raid module to take input from the guild channel.