Reodering some drawables

  > quantum_panel_shape is xml rectangle with no margin
  > quantum_panel_bitmap is 9-patch drawable with inbuild shadow and margin
  > quantum_panel uses xml-shape for lollipop and 9-patch image for lower
    devices. It includes margin. For shadow, use elevation on lollipop
  > All drawables have _dark variant
  > Using #f5f5f5 for panel background, instead of #ffffff

Change-Id: Ia7c6cea6d514ee3774fcf5fef6139650bdd53208
diff --git a/res/drawable/apps_list_search_bg.xml b/res/drawable/apps_list_search_bg.xml
index 63c4d55..9bb6d81 100644
--- a/res/drawable/apps_list_search_bg.xml
+++ b/res/drawable/apps_list_search_bg.xml
@@ -16,7 +16,7 @@
 -->
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
        android:shape="rectangle">
-    <solid android:color="#ffffff" />
+    <solid android:color="@color/quantum_panel_bg_color" />
     <corners
         android:bottomLeftRadius="2dp"
         android:bottomRightRadius="2dp" />
diff --git a/res/drawable/apps_search_bg.xml b/res/drawable/apps_search_bg.xml
index 405e844..57eb582 100644
--- a/res/drawable/apps_search_bg.xml
+++ b/res/drawable/apps_search_bg.xml
@@ -16,7 +16,7 @@
 -->
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
        android:shape="rectangle">
-    <solid android:color="#ffffff" />
+    <solid android:color="@color/quantum_panel_bg_color" />
     <corners
         android:topLeftRadius="2dp"
         android:topRightRadius="2dp" />
diff --git a/res/drawable/apps_reveal_bg.xml b/res/drawable/quantum_panel.xml
similarity index 78%
copy from res/drawable/apps_reveal_bg.xml
copy to res/drawable/quantum_panel.xml
index 07505a5..1f4fb71 100644
--- a/res/drawable/apps_reveal_bg.xml
+++ b/res/drawable/quantum_panel.xml
@@ -14,8 +14,5 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<shape xmlns:android="http://schemas.android.com/apk/res/android"
-       android:shape="rectangle">
-    <solid android:color="#ffffff" />
-    <corners android:radius="2dp" />
-</shape>
\ No newline at end of file
+<nine-patch xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/quantum_panel_bitmap" />
diff --git a/res/drawable/apps_reveal_bg.xml b/res/drawable/quantum_panel_dark.xml
similarity index 78%
rename from res/drawable/apps_reveal_bg.xml
rename to res/drawable/quantum_panel_dark.xml
index 07505a5..6642e78 100644
--- a/res/drawable/apps_reveal_bg.xml
+++ b/res/drawable/quantum_panel_dark.xml
@@ -14,8 +14,5 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<shape xmlns:android="http://schemas.android.com/apk/res/android"
-       android:shape="rectangle">
-    <solid android:color="#ffffff" />
-    <corners android:radius="2dp" />
-</shape>
\ No newline at end of file
+<nine-patch xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/quantum_panel_dark_bitmap" />
diff --git a/res/drawable/apps_list_bg.xml b/res/drawable/quantum_panel_shape.xml
similarity index 92%
copy from res/drawable/apps_list_bg.xml
copy to res/drawable/quantum_panel_shape.xml
index 0e56684..1083615 100644
--- a/res/drawable/apps_list_bg.xml
+++ b/res/drawable/quantum_panel_shape.xml
@@ -16,7 +16,7 @@
 -->
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
        android:shape="rectangle">
-    <solid android:color="#ffffff" />
+    <solid android:color="@color/quantum_panel_bg_color" />
     <corners
         android:radius="2dp" />
 </shape>
\ No newline at end of file
diff --git a/res/drawable/apps_list_bg.xml b/res/drawable/quantum_panel_shape_dark.xml
similarity index 92%
rename from res/drawable/apps_list_bg.xml
rename to res/drawable/quantum_panel_shape_dark.xml
index 0e56684..c3821c4 100644
--- a/res/drawable/apps_list_bg.xml
+++ b/res/drawable/quantum_panel_shape_dark.xml
@@ -16,7 +16,7 @@
 -->
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
        android:shape="rectangle">
-    <solid android:color="#ffffff" />
+    <solid android:color="@color/quantum_panel_bg_color_dark" />
     <corners
         android:radius="2dp" />
 </shape>
\ No newline at end of file