changing background and text colour on checkout page

Hi,
just starting with wix. Seem to be finding my way around ok, getting most things sorted, but i cannot find out how to edit the background and text on the checkout page, its just not listed anywhere to edit. I cannot see the text with the background at present so it needs changing.

any ideas?

Hi,
For questions about the Wix Stores product (customizing the checkout page for example), please contact Wix Support team as they know best.

Have a good day,
Tal.