I can't seem to find the setting where I can set a background picture for a category at the headings page but then revert back to no background at the lower level posts page for that same category.
Noting that this very forum does exactly what I am wanting to do too, it must be available somewhere.
Here's my example
I am happy with this background at the category heading level:

but this looks terrible and is automatically being brought through on the Posts detail page:

I would prefer that at the detail posts it is simply a blank background, but would retain the background image at the upper level.
As I said that is exactly what this WixForum is configured to be like, so I am hopefully just missing a configuration somewhere
apologies, just found the Overlay Colour and Opacity settings, basically the same background image still comes through but if you want a white on white overlay (of the image itself) so it appears as if it is not there, then you use the Overlay Setting