Background/Explanation: If you use Developer Console, and you open a Log file with the Analysis or All Perspective's enabled (Debug > Switch Perspective), you gain a "Save Order" tab that shows you the Save Order of execution for your various apex, workflow, validations, etc.
In this Save Order, things are color coded, but I cannot find any information online to determine the reason for these color codes or what they represent.
In my org, I am currently looking at a Save Order that runs the same apex more than once (expected because Save Order reruns apex after DML), but at the beginning of the Save Order the Trigger is listed in RED and then when its listed again later in the Save Order the same trigger is listed as ORANGE.
The Salesforce documentation I found on this subject does mention that they are color-coded, but does not go into any detail as to why, or how:
Question: What is the difference in color meant to represent?