Need a way to customize each bubble based on message attributes

I have a chat with multiple participants, and would like to customize the font, font color and background based on the participant. This doesn't seem possible presently. I've looked at the Presenter documentation, but at that point, the underlying bubble is already configured.

Start with the Presenter documentation and trace where a message becomes a configured bubble. Determine the existing customization boundary for font, font color, and background, then define how participant or message attributes should reach that configuration. Done means a chat can apply those three styles per participant, with behavior covered by the relevant existing tests if available.

Written by the indexing model from the issue text.