I'm guessing its to do with activity. Like, if somone is looking at a thread it starts swirling? I'm just guessing here.
Why are some blue and some red and some have dots?
Can someone explain please, I'm confuzzled!

Can't remember the 70's, too busy listening to Jethro Tull.oldjerry wrote:If they're pink,and breath out fire,it means you might have done a bit of experimenting in the 70's.