Hello,

Navigate to Pages > edit the page using the page builder > select the banner widget, and under the Style tab, adjust the color.

Read more button appears only if the product does not have the price, like this one or if the product is out of stock. This is how the WooCommerce plugin works. If you want to change the text, use the loco translate plugin for this:

https://xtemos.com/docs-topic/translate-woodmart-theme-with-loco-translate/

Best Regards