Groupmanager Chat Color?

Okay so i am writting a chat manager plugin and I just need to know how to check if the prefix from Groupmanager has color codes.

Code:java

package net.jc.minecraft;
 
import net.jc.minecraft.GMHook;
 
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.plugin.java.JavaPlugin;
 
public class Main extends JavaPlugin {
 
    public void onEnable() {
        getLogger().info("Loading... Chat... Yougold... Test...");
    }
 
    @EventHandler(priority = EventPriority.NORMAL)
    public void onPLayerChatEvent(AsyncPlayerChatEvent e) {
        Player p = e.getPlayer();
        String message = e.getMessage();
        String prefix = GMHook.getPrefix(p);
        message = message.replace('&', '§');
        prefix = prefix.replace('&', '§');
        e.setMessage(prefix + message);
    }
}