Background: "explicitly set currentWallpaper.source to nothing as an

attempt to fix the odd memory usage after a few hours"

Modules/Background/Background.qml

@@ -243,6 +243,9 @@ Variants {
         easing.type: Easing.InOutCubic
         onFinished: {
           // Swap images after transition completes
+          if (currentWallpaper.source !== "") {
+            currentWallpaper.source = ""
+          }
           currentWallpaper.source = nextWallpaper.source
           nextWallpaper.source = ""
           transitionProgress = 0.0
@@ -255,6 +258,9 @@ Variants {
       function setWallpaperImmediate(source) {
         transitionAnimation.stop()
         transitionProgress = 0.0
+        if (currentWallpaper.source !== "") {
+          currentWallpaper.source = ""
+        }
         currentWallpaper.source = source
         nextWallpaper.source = ""
       }