trough: adapt to GTK master changes

GTK now renders the two scale areas with different style classes, to
make it possible to use different shades for the areas before/after the
current value.
We don't do anything special about it yet, but we need to make sure the
highlight part gets the right style.

3 files changed, 3 insertions, 0 deletions

diff --git a/themes/Adwaita/gtk-3.0/gtk-widgets-backgrounds.css b/themes/Adwaita/gtk-3.0/gtk-widgets-backgrounds.css
index 980cded9..83766501 100644
--- a/themes/Adwaita/gtk-3.0/gtk-widgets-backgrounds.css
+++ b/themes/Adwaita/gtk-3.0/gtk-widgets-backgrounds.css
@@ -22,6 +22,7 @@
 .toolbar .button:hover:active,
 .primary-toolbar .button:active:focus,
 .trough,
+.trough.highlight,
 .trough row,
 .trough row:hover {
     background-image: -gtk-gradient (linear,
diff --git a/themes/Adwaita/gtk-3.0/gtk-widgets-borders.css b/themes/Adwaita/gtk-3.0/gtk-widgets-borders.css
index 9bba6b59..7b937027 100644
--- a/themes/Adwaita/gtk-3.0/gtk-widgets-borders.css
+++ b/themes/Adwaita/gtk-3.0/gtk-widgets-borders.css
@@ -9,6 +9,7 @@ GtkComboBox.combobox-entry .button:focus,
 .button:active:hover,
 .button:insensitive,
 .trough,
+.trough.highlight,
 .trough row,
 .trough row:hover,
 GtkSwitch.trough,
diff --git a/themes/Adwaita/gtk-3.0/gtk-widgets.css b/themes/Adwaita/gtk-3.0/gtk-widgets.css
index 8852849a..6342901d 100644
--- a/themes/Adwaita/gtk-3.0/gtk-widgets.css
+++ b/themes/Adwaita/gtk-3.0/gtk-widgets.css
@@ -389,6 +389,7 @@ GtkScale.slider:insensitive {
 }
 
 GtkScale.trough,
+GtkScale.trough.highlight,
 GtkScale.trough.vertical {
     border-width: 1;
     border-image: none;