Hi Kirk
Thanks for reaching out, glad to hear you’re enjoying the theme.
Polestar Premium adds settings to change all of the menu text colors, you can see which settings are added from this page: https://purothemes.com/documentation/polestar-wordpress-theme/customizer-theme-settings/navigation/.
There isn’t a font size setting provided. The main menu font sizes could be changed by adding the following to Customize > Additional CSS:
.main-navigation li {
font-size: 14px;
}
.main-navigation ul .children li a, .main-navigation ul .sub-menu li a {
font-size: 13px;
}
Edit the values as required. The second value is for the drop-down items.