Malays, seem to be not much different then a regular chicken, from what I have observed.
Things that stand out, about them:
If they feel threatened, they will defend themselves, & the flock. They're not aggressive towards humans, or other birds. (Like all chickens, a bad cockerel will pop up)
They have greater intelligence, & will avoid a situation if they feel it's needed. They problem solve.
They are very alert, & always has an eye out for danger. They choose to whether fight, or flee.
What does your calico princess look like? Yes I can't find much information on them either.