Remove Image Overlay - anyone know?

Hi guys, our site (https://www.museumofplayandart.com.au/) is built on the Naomi Template (A member of the Pacific Family).

I'd like to remove the opaque black overlay being applied to the banner image. I've searched the forums, tried all the code listed in various posts relating to similar matters, all to no avail.

Is there code I can inject in Advanced to overide this overlay?

Thank you so much in advance.

Regards, Tom

Add to Home > Design > Custom CSS

.homepage .index-image-overlay {
    background: rgba(28,13,10,0);
}

Worked a treat - thank you!!!