Thanks Helen - it's good to know. It;s a shame we picked dark blue for this colour.
I guess there no way to turn this off in the process tree?
That I'm afraid I have no idea about. I'd say, at a guess no, as it's all related to the escalations so unless you turn off the change colour action in the escalation it'll always show it. Had a quick look in Object designer and system settings but can't see anything that stands out to turn this on or off. Though happy for anyone to correct me
No problem - I'll look further into it - perhaps our users were mistaken when they said it was appearing on non-escalation nodes.
I've marked your anwer as correct.