Add shadows to compton config

compton/.config/compton.org

@@ -1,10 +1,43 @@
-Don't show shados for these windows.
+#+TITLE: Compton config
 
-- mowedline :: This is my statusbar application, I make it completely
-     transparent and that makes a shadow look very out of place.
+Consider all windows grouped by =WM_TRANSIENT_FOR= to be focused when
+one window in the group has focus.
 
 #+BEGIN_SRC conf
-  shadow-exclude = [
-      "name = 'mowedline'"
-  ];
+  detect-transient = true;
 #+END_SRC
+
+* Shadows
+
+  Turn on shadows.
+
+  #+BEGIN_SRC conf
+    shadow = true;
+  #+END_SRC
+
+  Don't draw shadows on drag-and-drop windows.
+
+  #+BEGIN_SRC conf
+    no-dnd-shadow = true;
+  #+END_SRC
+
+  Make shadows bigger.
+
+  #+BEGIN_SRC conf
+    shadow-radius = 10;
+  #+END_SRC
+
+  Don't show shadows for these windows.
+
+  - mowedline :: This is my statusbar application, I make it completely
+       transparent and that makes a shadow look very out of place.
+
+  - Shaped windows :: Things look weird when shaped windows get a
+       rectangular shadow.
+
+  #+BEGIN_SRC conf
+    shadow-exclude = [
+        "name = 'mowedline'",
+        "bounding_shaped"
+    ];
+  #+END_SRC