It does, under the accessibility options. 'Contrast themes' allow fairly fine-grained customization, still, and a lot of legacy values that have been there since Windows 95 are still supported otherwise to some extent albeit sometimes hidden.
I've hunted through Ease of Access (as it's called in Win10), and trawled through forums, trying to find a superior solution -- but the best I could find, and manage, is shown here:
Obviously with a busier amount of text on fore / rear terminals, and more than just two terminals -- that lack of a clear border becomes a massive confusion.
If you've found a better configuration, please do share.
What I do not comprehend is the logic behind why Windows does not support such in my view easy to implement choices.