add hex wave background overlay to lock screen

shell/lock/LockSurface.qml

@@ -3,6 +3,7 @@ import QtQuick.Effects
 import Quickshell
 import Quickshell.Wayland
 import "../modules" as M
+import "../modules/content" as C
 
 WlSessionLockSurface {
     id: root
@@ -41,6 +42,22 @@ WlSessionLockSurface {
         opacity: background.opacity
     }
 
+    // Hex wave overlay
+    C.HexWaveBackground {
+        id: hexWave
+        anchors.fill: parent
+        running: root.lock.secure
+        opacity: background.opacity * 0.4
+
+        NumberAnimation on opacity {
+            id: _hexFadeIn
+            running: false
+            to: 0.4
+            duration: 600
+            easing.type: Easing.OutCubic
+        }
+    }
+
     // Center content
     Item {
         id: content
@@ -219,6 +236,13 @@ WlSessionLockSurface {
                 duration: 300
                 easing.type: Easing.InCubic
             }
+            NumberAnimation {
+                target: hexWave
+                property: "opacity"
+                to: 0
+                duration: 300
+                easing.type: Easing.InCubic
+            }
         }
 
         PropertyAction {