Change Color of quest::shout2?

[Missneye]

I'm editing raid mob scripts so that when they die, it is announced to the world.

Right now I have it working fine, but I want to be able to change the color so it is more noticeable. How can I do this?

If possible, I would like it to be either yellow or tan (colors 15/315 in emote).

Here is the code I have for Severilous in Emerald Jungle:

sub EVENT_DEATH 
{
  quest::shout2("I have been killed!");
}