The new design of a Chat conversation means that Inbound messages, Outbound messages and internal notes/comments can be difficult to distinguish due to the shades of blue and grey used.
The compose box also now has a "Shared Draft" bar at all times, which takes up screen space, and the draft does not auto-expand which makes it difficult to view and edit the full message before sending it.
Having the options to customise the colours of the messages or aligning outbound messages to the opposite side of the screen to inbound would help to distinguish these messages and auto-expanding the compose box would make it easier to view drafts before sending.
Agree, our support team sometimes sends comments to customers by mistake.
Quite difficult to follow up the UI, especially when there is an increased number of messages.