respect disabled background for all cases

containment/package/contents/ui/PanelBox.qml

@@ -334,7 +334,7 @@ Item{
             opacity: {
                 if (forceSolidness) {
                     return 1;
-                } else if (root.forcePanelForBusyBackground || root.forceTransparentPanel) {
+                } else if (!root.userShowPanelBackground || root.forcePanelForBusyBackground || root.forceTransparentPanel) {
                     return 0;
                 } else {
                     return plasmoid.configuration.panelTransparency / 100;

containment/package/contents/ui/main.qml

@@ -93,6 +93,7 @@ DragDrop.DropArea {
     property bool forceSolidPanel: (latteView && latteView.visibility
                                     && Latte.WindowSystem.compositingActive
                                     && !root.editMode
+                                    && userShowPanelBackground
                                     && ( (plasmoid.configuration.solidBackgroundForMaximized && !hasExpandedApplet
                                           && (latteView.windowsTracker.existsWindowMaximized || latteView.windowsTracker.activeWindowTouching))
                                         || (hasExpandedApplet && plasmaBackgroundForPopups) ))
@@ -105,7 +106,8 @@ DragDrop.DropArea {
                                          && !(latteView.windowsTracker.existsWindowMaximized || latteView.windowsTracker.activeWindowTouching)
                                          && !(hasExpandedApplet && zoomFactor===1 && plasmoid.configuration.panelSize===100)
 
-    property bool forcePanelForBusyBackground: root.forceTransparentPanel && colorizerManager.mustBeShown && colorizerManager.backgroundIsBusy
+    property bool forcePanelForBusyBackground: userShowPanelBackground && root.forceTransparentPanel
+                                               && colorizerManager.mustBeShown && colorizerManager.backgroundIsBusy
 
     property int themeColors: plasmoid.configuration.themeColors
     property int windowColors: plasmoid.configuration.windowColors

shell/package/contents/configuration/pages/AppearanceConfig.qml

@@ -806,6 +806,7 @@ PlasmaComponents.Page {
                 checked: plasmoid.configuration.solidBackgroundForMaximized
                 tooltip: i18n("Background removes its transparency setting when a window is touching")
                 style: LatteExtraControls.LatteCheckBoxStyle{}
+                enabled: showBackground.checked
                 visible: dialog.expertLevel
 
                 onClicked: {
@@ -819,6 +820,7 @@ PlasmaComponents.Page {
                 text: i18n("Hide background when not touching any window")
                 checked: plasmoid.configuration.backgroundOnlyOnMaximized
                 tooltip: i18n("Background becomes transparent except when a window is touching")
+                enabled: showBackground.checked
                 visible: dialog.expertLevel
 
                 onClicked: {
@@ -832,6 +834,7 @@ PlasmaComponents.Page {
                 text: i18n("Hide background shadow for maximized windows")
                 checked: plasmoid.configuration.disablePanelShadowForMaximized
                 tooltip: i18n("Background shadows become hidden when a maximized window is touching the view")
+                enabled: showBackground.checked
                 visible: dialog.expertLevel
 
                 onClicked: {
@@ -845,6 +848,7 @@ PlasmaComponents.Page {
                 text: i18n("Prefer opaque plasma background for popups")
                 checked: plasmoid.configuration.plasmaBackgroundForPopups
                 tooltip: i18n("Background becomes opaque in plasma style")
+                enabled: showBackground.checked
                 visible: dialog.expertLevel
 
                 onClicked: {