diff --git a/applets/taskmanager/package/contents/ui/ToolTipInstance.qml b/applets/taskmanager/package/contents/ui/ToolTipInstance.qml
--- a/applets/taskmanager/package/contents/ui/ToolTipInstance.qml
+++ b/applets/taskmanager/package/contents/ui/ToolTipInstance.qml
@@ -186,7 +186,9 @@
 
             PlasmaCore.WindowThumbnail {
                 anchors.fill: parent
-                anchors.margins: units.smallSpacing
+                // Not units.smallSpacing because then you get a frame-within-a-frame effect
+                // Not 0 because then it can cover up the entire tooltip effect
+                anchors.margins: 1
 
                 visible: !albumArtImage.visible && !thumbnailSourceItem.isMinimized
                 winId: thumbnailSourceItem.winId
@@ -197,6 +199,9 @@
                 source: albumArt
                 anchors.fill: parent
                 fillMode: Image.PreserveAspectCrop
+                // Not units.smallSpacing because then you get a frame-within-a-frame effect
+                // Not 0 because then it can cover up the entire tooltip effect
+                anchors.margins: 1
                 visible: albumArtImage.available
                 layer.enabled: true
                 opacity: 0.25
@@ -212,7 +217,8 @@
                 // also Image.Loading to prevent loading thumbnails just because the album art takes a split second to load
                 readonly property bool available: status === Image.Ready || status === Image.Loading
 
-                height: thumbnail.height - playerControlsLoader.realHeight
+                height: albumArtBackground.height - playerControlsLoader.realHeight
+                anchors.top: albumArtBackground.top
                 anchors.horizontalCenter: parent.horizontalCenter
                 sourceSize: Qt.size(parent.width, parent.height)
 
@@ -249,6 +255,11 @@
             property real realHeight: item? item.realHeight : 0
 
             anchors.fill: thumbnail
+            // Not units.smallSpacing because then you get a frame-within-a-frame effect
+            // Not 0 because then it can cover up the entire tooltip effect
+            anchors.leftMargin: 1
+            anchors.rightMargin: 1
+            anchors.bottomMargin: 1
             sourceComponent: hasPlayer ? playerControlsComp : undefined
         }