diff --git a/release/antos-1.2.0.tar.gz b/release/antos-1.2.0.tar.gz
index 79a5bcf..aefebb2 100644
Binary files a/release/antos-1.2.0.tar.gz and b/release/antos-1.2.0.tar.gz differ
diff --git a/src/core/tags/WindowTag.ts b/src/core/tags/WindowTag.ts
index 755a8ae..16aa62a 100644
--- a/src/core/tags/WindowTag.ts
+++ b/src/core/tags/WindowTag.ts
@@ -405,6 +405,7 @@ namespace OS {
                     const mouse_move_hdl = (e) => {
                         let w = $(this).width();
                         let h = $(this).height();
+                        $(this.refs.win_overlay).show();
                         if(target != this.refs.grip_bottom)
                         {
                             w +=  e.clientX - offset.left;
@@ -421,6 +422,7 @@ namespace OS {
                         this.setsize({ w, h });
                     }
                     const mouse_up_hdl = (e) => {
+                        $(this.refs.win_overlay).hide();
                         $(window).off("mousemove", mouse_move_hdl);
                         return $(window).off("mouseup", mouse_up_hdl);
                     }
@@ -553,6 +555,11 @@ namespace OS {
                                     ref: "grip_right",
                                     class: "afx-window-grip-right",
                                 },
+                                {
+                                    el: "div",
+                                    ref: "win_overlay",
+                                    class: "afx-window-overlay",
+                                },
                             ],
                         },
                     ];
diff --git a/src/themes/system/afx-app-window.css b/src/themes/system/afx-app-window.css
index f83ae98..7e51703 100644
--- a/src/themes/system/afx-app-window.css
+++ b/src/themes/system/afx-app-window.css
@@ -61,4 +61,13 @@ afx-app-window div.afx-window-grip-right{
     top: 0;
     cursor: ew-resize;
     background-color: transparent;
+}
+afx-app-window div.afx-window-overlay {
+    background-color: transparent;
+    display: none;
+    position: absolute;
+    top: 0;
+    left: 0;
+    bottom: 5px;
+    right: 5px;
 }
\ No newline at end of file