Click the i in the top right of a chat to see Chat Details. Click on About This Chat to read the room description.
Click on Options then Customize Chat to create a chat room alias, assign a color, and adjust room notifications or settings.
Click on Members to view all room members and their roles.
Click on Files to see all file attachments shared in this room.
Note: your view of Chat Details varies depending on your role in that room and whether or not files have been shared.