diff --git a/gtk/theme/HighContrast/_common.scss b/gtk/theme/HighContrast/_common.scss
index ac993545f1..00d79771fe 100644
--- a/gtk/theme/HighContrast/_common.scss
+++ b/gtk/theme/HighContrast/_common.scss
@@ -3286,8 +3286,8 @@ decoration {
 
   // this needs to be transparent
   // see bug #722563
-  $_wm_border: transparentize(black, 0.77);
-  $_wm_border_backdrop: transparentize(black, 0.82);
+  $_wm_border: transparentize($fg_color, 0.77);
+  $_wm_border_backdrop: transparentize($fg_color, 0.82);
 
   box-shadow: 0 3px 9px 1px transparentize(black, 0.5),
               0 0 0 1px $_wm_border; //doing borders with box-shadow
diff --git a/gtk/theme/HighContrast/gtk-contained-inverse.css b/gtk/theme/HighContrast/gtk-contained-inverse.css
index 0d9c1218ca..5e6ac493a6 100644
--- a/gtk/theme/HighContrast/gtk-contained-inverse.css
+++ b/gtk/theme/HighContrast/gtk-contained-inverse.css
@@ -1469,17 +1469,17 @@ colorswatch#add-color-button:backdrop { border-width: 2px; border-style: solid;
 colorswatch#add-color-button overlay { border-width: 0; background: none; }
 
 /********************** Window Decorations * */
-decoration { border-radius: 7px 7px 0 0; border-width: 0px; box-shadow: 0 3px 9px 1px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 0, 0, 0.23); /* this is used for the resize cursor area */ margin: 10px; }
+decoration { border-radius: 7px 7px 0 0; border-width: 0px; box-shadow: 0 3px 9px 1px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.23); /* this is used for the resize cursor area */ margin: 10px; }
 
-decoration:backdrop { box-shadow: 0 2px 6px 2px rgba(0, 0, 0, 0.2), 0 3px 9px 1px transparent, 0 0 0 1px rgba(0, 0, 0, 0.18); }
+decoration:backdrop { box-shadow: 0 2px 6px 2px rgba(0, 0, 0, 0.2), 0 3px 9px 1px transparent, 0 0 0 1px rgba(255, 255, 255, 0.18); }
 
 .tiled decoration { border-radius: 0; }
 
-.csd.popup decoration { border-radius: 0; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(0, 0, 0, 0.13); }
+.csd.popup decoration { border-radius: 0; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.13); }
 
 tooltip.csd decoration { border-radius: 5px; box-shadow: none; }
 
-messagedialog.csd decoration { border-radius: 7px; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(0, 0, 0, 0.13); }
+messagedialog.csd decoration { border-radius: 7px; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.13); }
 
 .solid-csd decoration { border-radius: 0; margin: 4px; background-color: #000; border: solid 1px #737373; box-shadow: none; }