More theme changes:

src/platform/theme/theme_draw.cc

Index: src/platform/theme/theme_draw.cc
diff --git a/src/platform/theme/theme_draw.cc b/src/platform/theme/theme_draw.cc
index a7e3d8efa8f3d075ca084ac90fa013a66352bc59..fabfe154c88f664ab395152ef760e97fbda75591 100644
--- a/src/platform/theme/theme_draw.cc
+++ b/src/platform/theme/theme_draw.cc
@@ -977,9 +977,6 @@ static void DrawTabBorder(GtkStyle* style,
   }
 
   cairo_translate(cr.get(), x, y);
-  cairo_set_line_width(cr.get(), 1);
-  cairo_set_source_rgb(cr.get(), TAB_PANE_BORDER_R, TAB_PANE_BORDER_G,
-                       TAB_PANE_BORDER_B);
 
   cairo_move_to(cr.get(), .5, h);
   cairo_line_to(cr.get(), .5, BORDER_CORNER_RADIUS);
@@ -994,6 +991,22 @@ static void DrawTabBorder(GtkStyle* style,
   cairo_line_to(cr.get(), w - .5, BORDER_CORNER_RADIUS);
   cairo_line_to(cr.get(), w - .5, h);
 
+  if (state_type != GTK_STATE_NORMAL) {
+    // Gradient background for inactive tabs.
+    cairo_path_t* save_path = cairo_copy_path(cr.get());
+
+    cairo_close_path(cr.get());
+    ScopedPattern pattern;
+    AddRoundRectGradient(cr.get(), &pattern, h, false);
+    cairo_fill(cr.get());
+
+    cairo_append_path(cr.get(), save_path);
+    cairo_path_destroy(save_path);
+  }
+
+  cairo_set_line_width(cr.get(), 1);
+  cairo_set_source_rgb(cr.get(), TAB_PANE_BORDER_R, TAB_PANE_BORDER_G,
+                       TAB_PANE_BORDER_B);
   cairo_stroke(cr.get());
 }
 
@@ -1200,8 +1213,11 @@ void ThemeDrawArrow(GtkStyle* style,
   } else if (GTK_IS_RANGE(widget)) {
     DrawScrollbarArrow(style, window, state_type, shadow_type, area, widget,
                        arrow_type, fill, x, y, w, h);
-  } else if (GTK_IS_MENU_ITEM(widget) && detail &&
-             !strcmp(detail, "menuitem")) {
+  } else if ((GTK_IS_MENU_ITEM(widget) && detail &&
+              !strcmp(detail, "menuitem")) ||
+             (GTK_IS_MENU(widget) && detail &&
+              (!strcmp(detail, "menu_scroll_arrow_up") ||
+               !strcmp(detail, "menu_scroll_arrow_down")))) {
     DrawMenuArrow(style, window, state_type, shadow_type, area, widget,
                   arrow_type, fill, x, y, w, h);
   }