Macintosh Eudora Green Filter Dinosaurs

OK, I give up…what the heck is with the little green dinosaur icons that appear to the left of many (although not all) custom mail filters when you go to the filters window in Eudora for the Mac?

No, I have NOT been smoking hemp compounds or animal tranquilizers, there really are little green dinosaurs!

Eudora puts the dinosaur icon next to filters that haven’t been used for 30 days or more. Makes 'em visible and easy to remove if you don’t think you’ll need 'em any longer.