blur: demo BackgroundEffect.blurRegion on some components

quickshell/Modules/Notifications/Popup/NotificationPopup.qml

@@ -13,6 +13,14 @@ PanelWindow {
 
     WlrLayershell.namespace: "dms:notification-popup"
 
+    BackgroundEffect.blurRegion: Region {
+        x: content.x + bgShadowLayer.x
+        y: content.y + bgShadowLayer.y
+        width: bgShadowLayer.width
+        height: bgShadowLayer.height
+        radius: !win._finalized && !win.exiting ? Theme.cornerRadius : 0
+    }
+
     required property var notificationData
     required property string notificationId
     readonly property bool hasValidData: notificationData && notificationData.notification
@@ -267,6 +275,14 @@ PanelWindow {
                 }
             }
 
+            Rectangle {
+                anchors.fill: parent
+                radius: Theme.cornerRadius
+                color: "transparent"
+                border.color: Theme.outline
+                border.width: 1
+            }
+
             Rectangle {
                 id: backgroundShape
                 anchors.fill: parent