reorganize colors

src/client/styles/scss/theme/_apply-colors.scss

@@ -14,7 +14,8 @@ $bordercolor-nav-tabs: $gray-300 !default;
 $bordercolor-nav-tabs-hover: $gray-200 $gray-200 $bordercolor-nav-tabs !default;
 $color-nav-tabs-link-active: $gray-600 !default;
 $bordercolor-nav-tabs-active: $bordercolor-nav-tabs $bordercolor-nav-tabs $bgcolor-global !default;
-$color-seen-user: #549c79;
+$bordercolor-toc: $bordercolor-nav-tabs !default;
+$color-seen-user: #549c79 !default;
 
 // override bootstrap variables
 $body-bg: $bgcolor-global;
@@ -247,23 +248,19 @@ pre:not(.hljs):not(.CodeMirror-line) {
 }
 
 .top-of-table-contents {
-  border-color: $bordercolor-nav-tabs;
+  border-color: $bordercolor-toc;
 
   .grw-btn-top-of-table {
     fill: $color-link;
   }
   .grw-seen-user-list {
-    border-color: $bordercolor-nav-tabs;
+    border-color: $bordercolor-toc;
 
     .btn {
       color: $color-seen-user;
       &:active {
         color: $color-seen-user;
       }
-      &:focus {
-        outline: none;
-        box-shadow: none;
-      }
       .footstamp-icon {
         fill: $color-seen-user;
       }