2016 theme — Understanding Backgrounds and background colors

Hello!

I am trying to modify the 2016 theme so that the background image shows through on all pages. Which means that the background color needs to be transparent. I see there are two color settings: Background Color and Page Background color. It appears that the Page background color overrides all other settings, even the Background color setting…;-/

In another post, someone asked on how to disable the background color and they were told to enter this code in the Styles.css file:

body {
background: transparent;
}

However this does not change anything in my site.

What am I missing?
Is there another spot that needs to be disabled (Made transparent)?

Thanks for all your wisdom on this!