Envelope symbols to left of threads ?

[sailorman]

I once knew this but have forgotten . The envelope symbol can be several colors . One is a red, one is a gray, there may be a third color . What do the colors mean ?

 

[/pine]

I think the color basically shows how hot or cold the thread is (activity wise)...somewhere there is an icon legend...

 

[sailorman]

I think the color basically shows how hot or cold the thread is (activity wise)...somewhere there is an icon legend...

Thanks /pine. That makes sense . I looked for a legend but couldn 't find it .