You - (you color) impostor. Kill everyone, and be careful

You have appeared in the main cafeteria of Skeld, the rest of the crew are talking to each other: cyan apparently she went to do tasks in the admin area, gray is standing aside fixing wires; purple and yellow were discussing how to recognize the impostor; black was angry at green, because of his irritation and self-esteem; and your impostor partner is standing aside.