It would seem that all the dots with at least one space around them (in the session, outside quotes) are colored in red. Even those in the copyright banner when Cielo starts... Notice the red dots: "Copyright © VisualCielo. All rights reserved."

Yes indeed. Also the keywords (for, in, class, etc) are colored blue. The colorizer is a 'simple' routine that doesn't analize the context, just the words.