Hi c.gelep,
This feature is only available in the pro version of Interface Pro. You can change each and every color as well as font family and size too. Anyways we will provide you a Custom CSS to change hover/active color. Go to Appearance -> Theme Options -> Design Options Tab -> Custom CSS paste the following CSS code and Click on save all changes button:
#access a:hover,
#access ul li.current-menu-item a,
#access ul li.current_page_ancestor a,
#access ul li.current-menu-ancestor a,
#access ul li.current_page_item a,
#access ul li:hover > a,
#access ul li ul li a:hover,
#access ul li ul li:hover > a,
#access ul li.current-menu-item ul li a:hover {
color: #63c6ae;
}
Note: Change above HEX color code #63c6ae to your own HEX color code.
Thank you!