diff --git a/share/themes/Kali-Dark/gtk-3.0/gtk.css b/share/themes/Kali-Dark/gtk-3.0/gtk.css
index 82b32262..477b8589 100644
--- a/share/themes/Kali-Dark/gtk-3.0/gtk.css
+++ b/share/themes/Kali-Dark/gtk-3.0/gtk.css
@@ -5540,6 +5540,9 @@ headerbar.default-decoration {
   background-color: #181a20;
   background-position: -35px;
   background-repeat: no-repeat; }
+  .default-decoration.titlebar:backdrop:not(headerbar),
+  headerbar.default-decoration:backdrop {
+    background-color: #23252e; }
   .default-decoration.titlebar:not(headerbar) button.titlebutton,
   headerbar.default-decoration button.titlebutton {
     min-height: 0;
diff --git a/share/themes/Kali-Light/gtk-3.0/gtk-dark.css b/share/themes/Kali-Light/gtk-3.0/gtk-dark.css
index 82b32262..477b8589 100644
--- a/share/themes/Kali-Light/gtk-3.0/gtk-dark.css
+++ b/share/themes/Kali-Light/gtk-3.0/gtk-dark.css
@@ -5540,6 +5540,9 @@ headerbar.default-decoration {
   background-color: #181a20;
   background-position: -35px;
   background-repeat: no-repeat; }
+  .default-decoration.titlebar:backdrop:not(headerbar),
+  headerbar.default-decoration:backdrop {
+    background-color: #23252e; }
   .default-decoration.titlebar:not(headerbar) button.titlebutton,
   headerbar.default-decoration button.titlebutton {
     min-height: 0;
diff --git a/share/themes/Kali-Light/gtk-3.0/gtk.css b/share/themes/Kali-Light/gtk-3.0/gtk.css
index 636c15a4..9482892a 100644
--- a/share/themes/Kali-Light/gtk-3.0/gtk.css
+++ b/share/themes/Kali-Light/gtk-3.0/gtk.css
@@ -5561,6 +5561,9 @@ headerbar.default-decoration {
   background-color: #ededed;
   background-position: -35px;
   background-repeat: no-repeat; }
+  .default-decoration.titlebar:backdrop:not(headerbar),
+  headerbar.default-decoration:backdrop {
+    background-color: #ffffff; }
   .default-decoration.titlebar:not(headerbar) button.titlebutton,
   headerbar.default-decoration button.titlebutton {
     min-height: 0;
diff --git a/src/themes/Kali/sass/gtk3/_common-tweaks.scss b/src/themes/Kali/sass/gtk3/_common-tweaks.scss
index d12f7e00..1c61e358 100644
--- a/src/themes/Kali/sass/gtk3/_common-tweaks.scss
+++ b/src/themes/Kali/sass/gtk3/_common-tweaks.scss
@@ -288,6 +288,10 @@ headerbar {
     background-position: -35px;
     background-repeat: no-repeat;
 
+    &:backdrop {
+      background-color: $bg_color;
+    }
+
     button.titlebutton {
       min-height: 0;
       min-width: 0;