@mymarie2018
have you seen the reply by the theme author? on the theme specific forum?
If you follow the support and still need help, let the author know or I don’t mind either.
as far as I can see the code for the menu is in style.css under the following comment:
/* Primary Navigation */
if you look through this as your guide and then change as per author’s suggestion (Customize => Additional CSS), you should be able to achieve what you require.
/* Primary Navigation */
.primary-nav.slideMenu ul li a{padding:15px 15px;font-size: 14px;}
.primary-nav ul li a{color:#ffffff;z-index: 0;}
.primary-nav ul li a:hover{color: #bcb9b9;}
.primary-nav ul li a:hover { color: #000000 !important; }
.primary-nav ul li:last-child a{padding-right:0px;}
.primary-nav ul li.current-menu-item a{color: #000000;}
.primary-nav ul li ul{background: rgba(0, 0, 0, 0.8);}
.primary-nav.slideMenu ul li ul li{padding:0px 10px;}
.primary-nav.slideMenu ul li ul li a{min-width: 150px;padding:9px 10px 9px;display: block;font-size: 12px;color:#a1a1a1;border-bottom:1px solid #575757;}
.primary-nav.slideMenu ul li ul li:last-child a{border-bottom:none;}
.primary-nav.slideMenu ul li ul li a:hover{color:#fff;}
You only need to change the bits you want not everything. Such as hover and current to match the same colour.