Keynote White on Black Presenter Notes

Hi, All:

I'm using Keynote 6.6.1, and really need to have Presenter Notes as white text on a black background. These will be on big screens down-stage for our presenters, and the white background would cause too much light to be projected.

Is there any way to change the background color on the Presenter Notes section?

Many thanks in advance!

Cheers!

Greg