@mattandwillow: Hello there,
Go to => Appearance => Customize => Additional CSS and add the following CSS Code.
@media screen and (min-width: 75em) {
.navigation-classic.absolute-header .main-navigation a {
color: #000;
}
.navigation-classic.absolute-header .main-navigation ul :hover > a {
color: #ffe259;
}
.navigation-classic.absolute-header .main-navigation .menu > .current-menu-item > a {
color: #ffe259;
}
}
You can change the color according to your requirement
Let me know if this works out!
Kind Regards,
Skandha