2 files changed, 15 insertions, 3 deletions
diff --git a/desktop-themes/Blue-Submarine/gtk-3.0/gtk-widgets.css b/desktop-themes/Blue-Submarine/gtk-3.0/gtk-widgets.css
index e612fc7e..7e705047 100644
--- a/desktop-themes/Blue-Submarine/gtk-3.0/gtk-widgets.css
+++ b/desktop-themes/Blue-Submarine/gtk-3.0/gtk-widgets.css
@@ -5772,7 +5772,12 @@ GtkModelButton.button:selected,
                 inset  0px -1px shade (@theme_selected_bg_color, 1.3);
 }
 
-.window-frame {
+/* workaround to avoid unwanted black frames if switching compositor on/off */
+.background .window-frame  {
+    box-shadow: none;
+}
+
+.background.csd .window-frame {
     border-color: darker(@theme_bg_dark_color);
     border-radius: 7px 7px 0 0;
     border-width: 1px;
@@ -5783,9 +5788,11 @@ GtkModelButton.button:selected,
     margin: 10px;
 }
  
+/* workaround to avoid unwanted black frames if switching compositor on/off */
 .window-frame:backdrop {
     background-color: @theme_bg_dark_color;
-    box-shadow: 0 0 0 1px shade(@wm_border,1.1), 0 2px 5px 1px @wm_shadow;
+/*    box-shadow: 0 0 0 1px shade(@wm_border,1.1), 0 2px 5px 1px @wm_shadow;*/
+    box-shadow: none;
 }
 
 .window-frame.tiled {
@@ -5807,7 +5814,7 @@ GtkModelButton.button:selected,
 
 .window-frame.csd.popup {
     border-radius: 0;
-    box-shadow: 0 1px 5px @theme_shadow_color;
+    box-shadow: none;
 }
 
 .window-frame.csd.tooltip {
diff --git a/desktop-themes/Blue-Submarine/gtk-3.0/mate-applications.css b/desktop-themes/Blue-Submarine/gtk-3.0/mate-applications.css
index 7b066149..69b26b4b 100644
--- a/desktop-themes/Blue-Submarine/gtk-3.0/mate-applications.css
+++ b/desktop-themes/Blue-Submarine/gtk-3.0/mate-applications.css
@@ -670,6 +670,11 @@ FMPropertiesWindow .vertical.dialog-vbox .notebook GtkViewport {
     text-shadow: none;
 }
 
+/* workaround to avoid unwanted black frames if switching compositor on/off */
+.mate-panel-menu-bar .window-frame.csd.popup {
+    box-shadow: none;
+}
+
 /* first make all transparent */
 WnckSelector.menubar,
 PanelMenuBar.menubar,