title: Can a bot change the appearance of a initial message?
body: <p>Is it possible to change the appearance of a message in MS Teams by a bot?</p>
  <p>I want to develop a small bot which highlights new messages (with or without replies) in red automatically within a channel. As soon as a supporter reply with something like <code>/assigned @John Doe</code> the initial message should appear in orange. And finally after a reply such as <code>/closed</code> the message should appear in green.</p>