Resolution: These dots represent "ports" in the plugin, such as the trigger or error fields. You can see what each dot represents by clicking on the "T" icon at the very top of the window. This will turn the dots into text.
Issue/Introduction
What are the dots on the GUI ?
Environment
Product: TIBCO MessageBroker
Version: 4.1, 3.2.1.5
OS: All
--------------------