Change Pique Theme background image

Hi. I’m using WordPress’ Pique theme. https://wordpress.com/theme/pique
The current look and feel of the site is totally different to how it is advertised (probably because its doesn’t come with demo content – why is this?).

Im trying to upload a new background image. The image has successfully uploaded but is not showing wither in the editor or on the published page. I have a feeling that the default solid background colour is covering the image. How can I wither remove this solid background colour and / or make it transparent so the image shows thought?

(managed to change the header image just fine..)

Ultimately I want to get my background image to cover the entire background of the homepage – not just below the menu.
Im using SiteOrigins Custom CSS & PageBuilder plugins so if anyone knows how to achieve this using CustomCSS that would be helpful then I will know how to do it in future as I dont code. If not, advice on how to edit the CSS directly will be fine.

thanks

• This topic was modified 6 years, 6 months ago by Joshjj.

The page I need help with: [log in to see the link]