The Dux-Soup icon shows up in different colours depending on the account you have.
The Dux-Soup icon when on the Expert user interface shows the blue number that indicates how many visits and scans you have done since you started using the Dux-Soup robot. The options below are not available for the Regular/Simplified user interface.
This is the data you can download if you have Pro or Turbo.
You can change what the Dux-Soup icon shows via the Dux-Soup Options, Browser tab.