Color module background color for #triptych-wrapper incorrect.

I'm working with the openchurch_theme & color module. Regardless of the the value set for "Main background" the background for the #triptych-wrapper background remains white.

#triptych-wrapper background is set to #FFF on line 241 of openchurch-style.css here:

#triptych-wrapper {
  background: #fff;
  border-top: 0;
}

The preview created on /admin/appearance/settings/openchurch_theme with openchurch_theme/color/preview.html is displayed as expected with #preview-triptych-wrapper correctly, but #triptych-wrapper on the site home page does not.

Screenshots attached