Hello,

Please try adding the following Custom CSS in the Global Custom CSS area under Theme Settings >> Custom CSS.

For menu:

.wd-nav-main>li>a {
    color: red;
}

Header icons:

.wd-tools-icon:before {
    color: red;
}

For the category, wishlist please provide a relevant screenshot with the URL of the page to check it myself and help you out accordingly.

Best Regards