Change image overlay style color - 7.1

I have noticed that some black and white images that I'm using in my header section appear to have a color tint to them when I set the Image Settings > Background > Overlay Opacity to anything but 0. It made me wonder if the overlay element has a default color bias based on my global color settings?

Either way, I'm curious if there is a way to target and change the styling of the section image overlay?

You can change the color for this in the Theme Editor. You control the opacity of how light or dark the color is on each section in the background section.

Duh! Thank you @ChrisBartow. I guess I'm so used to tweaking styles via css that I forgot all about Theme settings.