diff --git a/share/themes/Kali-Dark/gtk-3.0/gtk.css b/share/themes/Kali-Dark/gtk-3.0/gtk.css
index 2db93083..9d5bb6ed 100644
--- a/share/themes/Kali-Dark/gtk-3.0/gtk.css
+++ b/share/themes/Kali-Dark/gtk-3.0/gtk.css
@@ -4848,6 +4848,8 @@ popover.emoji-completion .emoji:hover {
   .xfce4-panel button:not(#whiskermenu-button):checked, .xfce4-panel button:not(#whiskermenu-button):active {
     box-shadow: inset 0 4px 0 #2777ff;
     background: rgba(0, 0, 0, 0.2); }
+.xfce4-panel.vertical button:not(#whiskermenu-button):checked, .xfce4-panel.vertical button:not(#whiskermenu-button):active {
+  box-shadow: inset 4px 0 0 #2777ff; }
 
 /* XFCE4 panel action buttons */
 #XfcePanelWindowWrapper > widget > box > #xfce-panel-button > image {
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 2db93083..9d5bb6ed 100644
--- a/share/themes/Kali-Light/gtk-3.0/gtk-dark.css
+++ b/share/themes/Kali-Light/gtk-3.0/gtk-dark.css
@@ -4848,6 +4848,8 @@ popover.emoji-completion .emoji:hover {
   .xfce4-panel button:not(#whiskermenu-button):checked, .xfce4-panel button:not(#whiskermenu-button):active {
     box-shadow: inset 0 4px 0 #2777ff;
     background: rgba(0, 0, 0, 0.2); }
+.xfce4-panel.vertical button:not(#whiskermenu-button):checked, .xfce4-panel.vertical button:not(#whiskermenu-button):active {
+  box-shadow: inset 4px 0 0 #2777ff; }
 
 /* XFCE4 panel action buttons */
 #XfcePanelWindowWrapper > widget > box > #xfce-panel-button > image {
diff --git a/share/themes/Kali-Light/gtk-3.0/gtk.css b/share/themes/Kali-Light/gtk-3.0/gtk.css
index c1e3fe0b..1705d9be 100644
--- a/share/themes/Kali-Light/gtk-3.0/gtk.css
+++ b/share/themes/Kali-Light/gtk-3.0/gtk.css
@@ -4869,6 +4869,8 @@ popover.emoji-completion .emoji:hover {
   .xfce4-panel button:not(#whiskermenu-button):checked, .xfce4-panel button:not(#whiskermenu-button):active {
     box-shadow: inset 0 4px 0 #2777ff;
     background: #ffffff; }
+.xfce4-panel.vertical button:not(#whiskermenu-button):checked, .xfce4-panel.vertical button:not(#whiskermenu-button):active {
+  box-shadow: inset 4px 0 0 #2777ff; }
 
 /* XFCE4 panel action buttons */
 #XfcePanelWindowWrapper > widget > box > #xfce-panel-button > image {
diff --git a/src/themes/Kali/sass/_applications.scss b/src/themes/Kali/sass/_applications.scss
index 3d5f2f96..d4308371 100644
--- a/src/themes/Kali/sass/_applications.scss
+++ b/src/themes/Kali/sass/_applications.scss
@@ -25,6 +25,10 @@
       }
     }
   }
+
+  &.vertical button:not(#whiskermenu-button) {
+    &:checked, &:active { box-shadow: inset 4px 0 0 $selected_bg_color; }
+  }
 }
 
 /* XFCE4 panel action buttons */