forum question: what do the icons mean?

I am not sure I understand how the icons on the forums work. On the index of the forum sometimes the icons are orage, and other times white. In the discussion areas the icons somtimes wiggle, and other times they don't move. Sometimes I see red rectangular small icons.

What do they mean?

moe?

Click on 'General Discussion' or whatever other forum and look at the BOTTOM OF THE PAGE. :cheers:

Thank you.

moe.