Hi Mitchell!

I see you refer to PokaTheme 3.

The color of the grey block comes from the “Site background color” that you can change in Dashboard > Theme Settings > Visual Settings, under “General” tab. But this will change the background color of the site so I don’t think it’s a good idea.

If you want to change the background color only for this section, which is a “special” section and its background is styled somehow hardcoded, you need to add the following CSS into your child theme’s style.css:

.body-header-style1.home .section--first {
 background: #ff0000 !important;
}

The above example will add a red (#ff0000) background color.