I have not have any luck in determining this, querying with AIs just lead to more time wasting, I have changed it a number of times yet I have not observed any color changes on my viewport.
Just to clear, this is the colour option I am referring to.
I hope someone here knows. Thank you.
when you select an object it is the “lead object” (light green by default)
when you shift-select a second object , the second object becomes the new “lead object”
The previously selected object (but still in the selection ) is now just an “object” (default color : white)
so “object” in your question refers to the former lead object still in the selection set.
@Mambo4
Absolute legend, thank you mate