Custom color for views in certain directories?

[monkeygrip]

I have 2 networked drives, CAD and CNC, they have the same folder structure, but one drive only contains cad files, the other only contains cnc and pdf files.

When I'm viewing the CAD directory I'd like the background color to be different than the CNC directory.
Is this possible? (I did a search with no answer.)
Thanks.

[Dreamer]

There is an option to change the color, but only the text color, for any extension - in settings > view > colors.