Hi,
The dark background for table headers is coming from your template, where on line 323 in template.css it applies the color #444.
To change it for the cart tables only, you should follow this documentation to create a custom CSS file for the HikaShop frontend:
www.hikashop.com/support/support/documen...the-display.html#css
To change the background color, you may add these lines to it:
.hikashop_cart th, .hikashop_checkout_cart th {
background: #ededed !important;
padding: 5px 10px !important;
}
This will make it the same light grey as in the checkout progress bar - you may want to pick a different color, of course.
Note that I also added a padding consistent with what it presently already in your checkout cart.