[gtk+] Adwaita: increase scrollbar slider contrast

[Lapo Calamandrei <lapo src gnome org>]

commit c0c777077aafd2bbd47c5a0055fda3f6a77f8af2
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Sat Nov 8 17:35:52 2014 +0100

    Adwaita: increase scrollbar slider contrast

 gtk/resources/theme/Adwaita/_common.scss           |    8 ++++----
 gtk/resources/theme/Adwaita/gtk-contained-dark.css |    6 +++---
 gtk/resources/theme/Adwaita/gtk-contained.css      |    6 +++---
 3 files changed, 10 insertions(+), 10 deletions(-)
---
diff --git a/gtk/resources/theme/Adwaita/_common.scss b/gtk/resources/theme/Adwaita/_common.scss
index 2c58a1c..1c44895 100644
--- a/gtk/resources/theme/Adwaita/_common.scss
+++ b/gtk/resources/theme/Adwaita/_common.scss
@@ -1902,14 +1902,14 @@ column-header.button.dnd { // for treeview-like derive widgets
   .slider {
     border-color: transparent;
     border-style: solid;
-    background-color: mix($bg_color, $fg_color, 70%);
+    background-color: mix($fg_color, $bg_color, 40%);
     background-clip: padding-box; // needed since we use the borders as margins
 
-    &:hover { background-color: mix($bg_color, $fg_color, 50%); }
+    &:hover { background-color: mix($fg_color, $bg_color, 60%); }
 
-    &:prelight:active { background-color: $selected_bg_color; }
+    &:prelight:active { background-color: if($variant=='light', darken($selected_bg_color, 10%), 
lighten($selected_bg_color, 10%));}
 
-    &:backdrop { background-color: mix($backdrop_bg_color, $backdrop_fg_color, 60%); }
+    &:backdrop { background-color: mix($backdrop_fg_color, $backdrop_bg_color, 40%); }
 
     &:insensitive {
       background-color: transparent;
diff --git a/gtk/resources/theme/Adwaita/gtk-contained-dark.css 
b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
index 873d94c..b82a8c7 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
@@ -2428,14 +2428,14 @@ column-header .titlebar .button.titlebutton,
   .scrollbar .slider {
     border-color: transparent;
     border-style: solid;
-    background-color: #6f7372;
+    background-color: #818584;
     background-clip: padding-box; }
     .scrollbar.overlay-indicator.dragging.vertical .slider:hover, 
.scrollbar.overlay-indicator.hovering.vertical .slider:hover, 
.scrollbar.overlay-indicator.dragging.horizontal .slider:hover, 
.scrollbar.overlay-indicator.hovering.horizontal .slider:hover,
     .scrollbar .slider:hover {
-      background-color: #939695; }
+      background-color: #a5a8a6; }
     .scrollbar.overlay-indicator.dragging.vertical .slider:prelight:active, 
.scrollbar.overlay-indicator.hovering.vertical .slider:prelight:active, 
.scrollbar.overlay-indicator.dragging.horizontal .slider:prelight:active, 
.scrollbar.overlay-indicator.hovering.horizontal .slider:prelight:active,
     .scrollbar .slider:prelight:active {
-      background-color: #215d9c; }
+      background-color: #2a76c6; }
     .scrollbar.overlay-indicator.dragging.vertical .slider:backdrop, 
.scrollbar.overlay-indicator.hovering.vertical .slider:backdrop, 
.scrollbar.overlay-indicator.dragging.horizontal .slider:backdrop, 
.scrollbar.overlay-indicator.hovering.horizontal .slider:backdrop,
     .scrollbar .slider:backdrop {
       background-color: #5d6161; }
diff --git a/gtk/resources/theme/Adwaita/gtk-contained.css b/gtk/resources/theme/Adwaita/gtk-contained.css
index 321cbc8..a2b0c70 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained.css
@@ -2425,14 +2425,14 @@ column-header .titlebar .button.titlebutton,
   .scrollbar .slider {
     border-color: transparent;
     border-style: solid;
-    background-color: #b3b5b6;
+    background-color: #a0a3a3;
     background-clip: padding-box; }
     .scrollbar.overlay-indicator.dragging.vertical .slider:hover, 
.scrollbar.overlay-indicator.hovering.vertical .slider:hover, 
.scrollbar.overlay-indicator.dragging.horizontal .slider:hover, 
.scrollbar.overlay-indicator.hovering.horizontal .slider:hover,
     .scrollbar .slider:hover {
-      background-color: #8d9091; }
+      background-color: #7a7e7f; }
     .scrollbar.overlay-indicator.dragging.vertical .slider:prelight:active, 
.scrollbar.overlay-indicator.hovering.vertical .slider:prelight:active, 
.scrollbar.overlay-indicator.dragging.horizontal .slider:prelight:active, 
.scrollbar.overlay-indicator.hovering.horizontal .slider:prelight:active,
     .scrollbar .slider:prelight:active {
-      background-color: #4a90d9; }
+      background-color: #2a76c6; }
     .scrollbar.overlay-indicator.dragging.vertical .slider:backdrop, 
.scrollbar.overlay-indicator.hovering.vertical .slider:backdrop, 
.scrollbar.overlay-indicator.dragging.horizontal .slider:backdrop, 
.scrollbar.overlay-indicator.hovering.horizontal .slider:backdrop,
     .scrollbar .slider:backdrop {
       background-color: #c6c7c8; }