get rid of "defer" hack

example/style.lua

@@ -9,9 +9,10 @@ return {
         align = 'center middle',
         width = 48,
         slices = function (self)
-            return self.focused and 'defer'
-                or self.hovered and 'defer'
-                or false
+            if self.focused or self.hovered or self.pressed then
+                return nil -- fall back to theme default
+            end
+            return false -- no slices
         end
     },
     statusbar = {

luigi/widget.lua

@@ -67,7 +67,7 @@ local function metaIndex (self, property)
     local layout = self.layout
     local style = layout:getStyle()
     value = style and maybeCall(style:getProperty(self, property), self)
-    if value ~= nil and value ~= 'defer' then return value end
+    if value ~= nil then return value end
 
     local theme = layout:getTheme()
     return theme and maybeCall(theme:getProperty(self, property), self)