What the little envelope icons mean?

kathyathome

Hopeless obsesser
Dec 28, 2012
437
0
Redmond, Oregon
I'm sorry but a search of the forums brings up a ton of them about envelope clutches. I know I saw this once but for the life of me can't find it now. Can someone direct me to where it tells what the little envelopes to the left of each post mean? :shame:
 

Swanky

Admin
Admin
O.G.
Jan 12, 2006
86,314
6,240
To the left of the thread title?

An open envelope means there's unread posts by you, a closed envelope means you've read them all/no new posts.
 

Swanky

Admin
Admin
O.G.
Jan 12, 2006
86,314
6,240
You've posted in the red and blue ones, see the dot on them as well?
I believe red means it's an active thread/busy. Blue means not as active {?}