Notification background-color to theme

src/stylesheets/lungo.widgets.notification.styl

@@ -9,7 +9,6 @@
 
 @import "constants.styl"
 
-OPACITY = rgba(0,0,0,0.75)
 LOADING = 104px
 WINDOW_WIDTH = 280px
 
@@ -21,7 +20,6 @@ WINDOW_WIDTH = 280px
   height: 100%
   z-index: 3
   display: none
-  background-color: OPACITY
 
   & .window
     position: relative

src/stylesheets/theme.lungo.styl

@@ -202,10 +202,10 @@ nav
 /* -------------------------- NOTIFICATION -------------------------- */
 .notification
   color: #fff
+  background-color: rgba(0,0,0,0.75)
   & .window
     &.growl
       background: rgba(0,0,0,0.8)
-
     &:not(.growl)
       background: #e6e6e6
       color: #222
@@ -217,7 +217,6 @@ nav
         border-radius 0px !important
         border: none !important
         margin-bottom: 1px
-
       &.error
         background: darken(COLOR_cancel, 25%)
         color: #fff
@@ -225,7 +224,6 @@ nav
         background: darken(COLOR_accept, 25%)
         color: #fff
 
-
 /* -------------------------- BUTTONS -------------------------- */
 header
   & .button, button