[napy8gen]

style manager> style name> edit templates> css templates> css_additional.css

/* changes in sidebar above see more text */
.divider, .content-divider {
border-color: #CC6600;
border-style: dotted;
}

/* sidebar content separator border */
.list-container .list-item {
border: 1px solid #CC6600;
}

/* forums separator border */
.forum-list-container .forum-item td {
border-top: 1px dotted #CC6600;
}

for above "see more" text, dotted border there is stylevar working for that.
Miscellaneous> content_divider_color but only color not the border style dotted property