Change Bubble color dynamically

I want to change Bubble color based on message status like failed(Red), sending(Gray), success(Blue)
And also need to add two more status Read, Unread.

Please help me.

The issue names no files, tests, or entry points. Start by locating the bubble rendering and message-status definitions in the Chatto framework, then trace how message state reaches the UI. Done means the documented statuses have distinct configurable colors and the behavior is covered by the relevant tests, if they exist.

Written by the indexing model from the issue text.