Hi nikolasf,
You can create the /templates/ja_autoshop/css/custom.css file and add the following CSS code to change the color:
.navbar-default .navbar-nav > .active > a,
.navbar-default .navbar-nav > .active > a:hover,
.navbar-default .navbar-nav > .active > a:focus {
color: #ffa428;
}
.navbar-default .navbar-nav > .active > a .caret,
.navbar-default .navbar-nav > .active > a:hover .caret,
.navbar-default .navbar-nav > .active > a:focus .caret {
border-top-color: #ffa428 !important;
border-bottom-color: #ffa428 !important;
}
