I was thinking about the same...
I think I have it figured out now that the 'pings' to or from are colored coded, but I can't tell which ones I've already looked at???
I'm too old for much in the way of changes.
This old ditty keeps passing through my head: "If it ain't broke, don't fix it"
It seems someone is having fun with a new toy...
See #27. It’s an engineer thing.