Slightly darken the left nav captions

Author: davidfischer

sass/_theme_layout.sass

@@ -24,7 +24,6 @@
     padding: 0 $base-font-size
 
 .wy-menu-vertical
-  color: $menu-medium
   width: $nav-desktop-width
 
   header, p.caption
@@ -264,6 +263,7 @@
   overflow-x: hidden
   overflow-y: hidden
   min-height: 100%
+  color: $menu-medium
   background: $nav-background-color
   z-index: $z-index-popover
 

sass/_theme_variables.sass

@@ -32,7 +32,7 @@ $menu-vertical-background-color:      $section-background-color
 // Menu text colors
 $menu-color:                          $gray
 $menu-dark:                           lighten($menu-color,10%) !default
-$menu-medium:                         lighten($menu-color,30%) !default
+$menu-medium:                         lighten($menu-color,27.5%) !default
 $menu-light:                          lighten($menu-color,45%) !default
 $menu-lighter:                        lighten($menu-color,60%) !default