The Starter has theme options set up for Body color and Site Link colors, however these do not seem to be output in the core styles.
When switched to Intergrity or other stacks, the theme option Site Link colors are set in some of the core style output for each page:
a, h1 a:hover, h2 a:hover, h3 a:hover, h4 a:hover, h5 a:hover, h6 a:hover, .x-breadcrumb-wrap a:hover, .widget ul li a:hover, .widget ol li a:hover, .widget.widget_text ul li a, .widget.widget_text ol li a, .widget_nav_menu .current-menu-item > a, .x-accordion-heading .x-accordion-toggle:hover, .x-comment-author a:hover, .x-comment-time:hover, .x-recent-posts a:hover .h-recent-posts {
// This is dynamically populated by the
// {{dc:theme:x_site_link_color}} option
color: blue;
}
However in the Starter stack, there is no such code, and the default color of links (and hover color) is set to inherit by cs-theme.7.3.7.css?ver=7.3.7
I would request that since there is a theme option in the Starter stack for Site Link colors, this color is the default for interactive elements.