Changing the background color 1 under color scheme also has no effect on the product card. Because card is using the same color scheme as the page background, there is no contrast between two & looks odd.
Looks like a bug on the theme, if so please fix it, if not, let me know how to fix it. Please note, I have not changed any of the color schemes of the theme, everything is set to default as provided by the Sense theme.