envelopes at left side threads

[phinfan]

I haven't figured out how or what the envelopes are for at the side of the threads. Every time I post something, the envelope has an arrow over it, but others are blue or shaded red. Where can I go to get an explanation of that?

 

[pigcicles]

See if this helps... scroll to the bottom of the page

http://www.smokingmeatforums.com/mod...=Active_Topics

 

[phinfan]

thanks a bunch I knew I had seen that legend before but couldn't remember where