NC28+ change to theme/color scheme

I’m not sure if this is a bug or a setting that is changed that I would need to alter elsewhere. When I migrate my system from NC27 to NC28 (or 29), the color scheme for the text flips from White to Black. I prefer the White as it matches the icons and is more pleasing. Not sure what causes the change but every time I upgrade my test machine I am seeing this.

This is NC27 with the preferred White text:

This is NC28 with that has automatically switched the text to black: