When working on a document with multiple reviewers, I set Track Changes
Markup Color to "By Author". I'm usually the first person to review and it
always makes me red. I hate using red (too many bad memories.)

I know how to change all insertions, deletions, etc. to a specific color.

How do I set it so that my reviewer color is green, someone else's is
purple, and a third person's is blue? Is it even possible?