Can anyone share how extended collections look like when inspecting in Dev Mode?

We are currently not using variable modes, because our developers don’t get a clear enough inspection experience in Dev Mode.

I would like to ask all of you 2 things:
1. Do you know a solution that makes variable modes more explicit in Dev Mode?
2. Can anyone please share how the new extended collections feature looks like when inspecting in Dev Mode? I want to know if it gives the developers a better experience there…

Thank you in advance :)