I want to know the answer to the following question:
What color was the sacrifice mandated to be for heaven deities?
All the background I'm provided with is that "After the sacrifice, a banquet was held; in state cults, the images of honoured deities took pride of place on banqueting couches and by means of the sacrificial fire consumed their proper portion (exta, the innards).". Is that enough to answer the question?
Answer: no