screen corners: mask layer visibility to the corners only

.config/quickshell/modules/screenCorners/ScreenCorners.qml

@@ -5,6 +5,7 @@ import QtQuick.Controls
 import QtQuick.Layouts
 import Quickshell
 import Quickshell.Wayland
+import Quickshell.Hyprland
 
 Scope {
     id: screenCorners
@@ -23,6 +24,20 @@ Scope {
             mask: Region {
                 item: null
             }
+            HyprlandWindow.visibleMask: Region {
+                Region {
+                    item: topLeftCorner
+                }
+                Region {
+                    item: topRightCorner
+                }
+                Region {
+                    item: bottomLeftCorner
+                }
+                Region {
+                    item: bottomRightCorner
+                }
+            }
             WlrLayershell.namespace: "quickshell:screenCorners"
             WlrLayershell.layer: WlrLayer.Overlay
             color: "transparent"
@@ -35,24 +50,28 @@ Scope {
             }
 
             RoundCorner {
+                id: topLeftCorner
                 anchors.top: parent.top
                 anchors.left: parent.left
                 size: Appearance.rounding.screenRounding
                 corner: cornerEnum.topLeft
             }
             RoundCorner {
+                id: topRightCorner
                 anchors.top: parent.top
                 anchors.right: parent.right
                 size: Appearance.rounding.screenRounding
                 corner: cornerEnum.topRight
             }
             RoundCorner {
+                id: bottomLeftCorner
                 anchors.bottom: parent.bottom
                 anchors.left: parent.left
                 size: Appearance.rounding.screenRounding
                 corner: cornerEnum.bottomLeft
             }
             RoundCorner {
+                id: bottomRightCorner
                 anchors.bottom: parent.bottom
                 anchors.right: parent.right
                 size: Appearance.rounding.screenRounding