I had 4 Yes/No questions using Radio Buttons.
In v9, I can easily change them to Button Group.
I like this new style...

Would be nice to look like this (simple CSS tweak), Except, the NO should be Red, not green.

I cannot find a way using only CSS (ie. no JS Render Script) to style the YES green, and NO red.
I understand its tough, because its not just a Yes/No switch - it can be any number of options in the group.
Bruce mentioned trying a Presentation rule, but all that does is color the entire object:

So close but yet so far.