[gtk+] Adwaita: make menu bg color the same as popovers

[Lapo Calamandrei <lapo src gnome org>]

commit 191b9d84faa4b716eccf39077a0327a765343b6c
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Wed Dec 9 18:56:38 2015 +0100

    Adwaita: make menu bg color the same as popovers
    
    fixes https://bugzilla.gnome.org/show_bug.cgi?id=759260

 gtk/theme/Adwaita/_colors.scss           |    3 +++
 gtk/theme/Adwaita/_common.scss           |    6 +++---
 gtk/theme/Adwaita/gtk-contained-dark.css |    8 +++++---
 gtk/theme/Adwaita/gtk-contained.css      |    8 +++++---
 4 files changed, 16 insertions(+), 9 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_colors.scss b/gtk/theme/Adwaita/_colors.scss
index 5fbf1ac..478e728 100644
--- a/gtk/theme/Adwaita/_colors.scss
+++ b/gtk/theme/Adwaita/_colors.scss
@@ -17,6 +17,7 @@ $link_visited_color: if($variant == 'light', darken($selected_bg_color,20%), lig
 $top_hilight: $borders_edge;
 $dark_fill: mix($borders_color, $bg_color, 35%);
 $headerbar_color: if($variant == 'light', lighten($bg_color, 5%), darken($bg_color, 3%));
+$menu_color: mix($bg_color, $base_color, 50%);
 
 $scrollbar_bg_color: darken($bg_color, 7%);
 
@@ -53,3 +54,5 @@ $backdrop_dark_fill: mix($backdrop_borders_color, $backdrop_bg_color, 35%);
 $backdrop_sidebar_bg_color: mix($backdrop_bg_color, $backdrop_base_color, 50%);
 
 $backdrop_scrollbar_bg_color: darken($backdrop_bg_color, 3%);
+
+$backdrop_menu_color: mix($backdrop_bg_color, $backdrop_base_color, 50%);
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 5669235..59c452d 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -1489,9 +1489,10 @@ menu,
 .menu {
   margin: 4px;
   padding: 0px;
-  background-color: $base_color;
+  background-color: $menu_color;
   border: 1px solid $borders_color; // adds borders in a non composited env
   .csd & { border: none; }  // axes borders in a composited env
+  &:backdrop { background-color: $backdrop_menu_color; }
   & menuitem {
     text-shadow: none;
     padding: 4px;
@@ -1505,7 +1506,7 @@ menu,
     }
     &:backdrop, &:backdrop:hover {
       color: $backdrop_fg_color;
-      background-color: $backdrop_base_color;
+      background-color: transparent;
     }
     //submenu indicators
     & arrow { -gtk-icon-source: -gtk-icontheme('pan-end-symbolic'); }
@@ -1537,7 +1538,6 @@ popover.background {
   padding: 2px;
   border-radius: 5px;
   .csd &, & { border: 1px solid $borders_color; }
-  background-color: mix($bg_color, $base_color, 50%);
   box-shadow: 0 1px 2px transparentize(black, 0.7);
 
   &:backdrop {
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index 6c551da..d91a647 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -2085,11 +2085,14 @@ menu,
 .menu {
   margin: 4px;
   padding: 0px;
-  background-color: #292929;
+  background-color: #313434;
   border: 1px solid #1c1f1f; }
   .csd menu, .csd
   .menu {
     border: none; }
+  menu:backdrop,
+  .menu:backdrop {
+    background-color: #333636; }
   menu menuitem,
   .menu menuitem {
     text-shadow: none;
@@ -2108,7 +2111,7 @@ menu,
     .menu menuitem:backdrop,
     .menu menuitem:backdrop:hover {
       color: #949796;
-      background-color: #2c2c2c; }
+      background-color: transparent; }
     menu menuitem arrow,
     .menu menuitem arrow {
       -gtk-icon-source: -gtk-icontheme("pan-end-symbolic"); }
@@ -2143,7 +2146,6 @@ menuitem accelerator {
 popover.background {
   padding: 2px;
   border-radius: 5px;
-  background-color: #313434;
   box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3); }
   .csd popover.background, popover.background {
     border: 1px solid #1c1f1f; }
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index 60211f5..aacb0e5 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -2091,11 +2091,14 @@ menu,
 .menu {
   margin: 4px;
   padding: 0px;
-  background-color: #ffffff;
+  background-color: #f4f4f3;
   border: 1px solid #9d9d99; }
   .csd menu, .csd
   .menu {
     border: none; }
+  menu:backdrop,
+  .menu:backdrop {
+    background-color: #f4f4f3; }
   menu menuitem,
   .menu menuitem {
     text-shadow: none;
@@ -2114,7 +2117,7 @@ menu,
     .menu menuitem:backdrop,
     .menu menuitem:backdrop:hover {
       color: #8b8e8f;
-      background-color: white; }
+      background-color: transparent; }
     menu menuitem arrow,
     .menu menuitem arrow {
       -gtk-icon-source: -gtk-icontheme("pan-end-symbolic"); }
@@ -2149,7 +2152,6 @@ menuitem accelerator {
 popover.background {
   padding: 2px;
   border-radius: 5px;
-  background-color: #f4f4f3;
   box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3); }
   .csd popover.background, popover.background {
     border: 1px solid #9d9d99; }