Conversation Content Bubble indications?

[_The Doctor__]

It's my understanding that the new content bubbles indicate as the following.

light blue/grey                   no new content

dark blue outlines              new content that you have not participated in

dark blue solid fill               new content in a forum topic you have participated in.

 

no bubble or cloud at all?    I don't know the significance of a thread or topic that has no indicator showing, might need explanation.

 

currently blue AA logo means no new content

orange AA logo means new content in that forum/sub-forum

 

Reacting votes you cast in a thread do not affect participation indications

 

Can someone explain the lack of indication on some of the topic/threads?

Edited June 18, 2019 by _The Doctor__

[alex_79]

I think that the light blue/gray bubbles indicates no new content in a topic you have participated in, while no bubbles at all is no new content in a topic you have not participated in.