Hello,
01. Since you are using a dark theme, the typography requires a lighter color to remain visible. To adjust this, go to Theme Settings > Styles & Colors > Styles and disable the Dark Theme option.
If you wish to keep the dark theme, navigate to Theme Settings > Styles & Colors to select your preferred color scheme, and then go to Typography to set text colors that are clearly visible on your pages.
02. To make sorting visible, Try to add the following CSS Code in Theme Settings > Custom CSS.
.woocommerce-ordering.wd-style-underline select {
color: #00ff08 !important;
}
03. Navigate to Products > Attributes > Edit your attribute and click Configure terms and enable any swatch type.
You can read more here https://xtemos.com/docs-topic/variable-products-and-swatches/ and https://xtemos.com/docs-topic/attribute-swatches/
04. Navigate to Theme Settings -> Product archive -> Page title. With the help of the “Exclude categories” area, you can hide some categories thus you can show only the required ones: https://ibb.co/HVZnY4r
05. The product category URL relates to WooCommerce. You can change the URL in the Settings > Permalink > Product category base: https://ibb.co/B2tBRY9K
Best Regards,