Refine style picker layout (2/2)

 - Change options border to 8dp, https://docs.google.com/presentation/d/15JadcGi5k1_0znUN_XdFpU7UxeXwxjK3Y7LxvhW5ETM/edit?ts=5eb5f9a8#slide=id.g777aaff414_1_0

Change-Id: I313f9bda1ad250062cbaab28a99689dea027972f
diff --git a/res/drawable/option_border.xml b/res/drawable/option_border.xml
index 6ce76c7..fbeddca 100644
--- a/res/drawable/option_border.xml
+++ b/res/drawable/option_border.xml
@@ -18,7 +18,7 @@
     <item android:id="@android:id/mask">
         <shape android:shape="rectangle">
             <solid android:color="@android:color/white"/>
-            <corners android:radius="4dp" />
+            <corners android:radius="8dp" />
         </shape>
     </item>
     <item android:drawable="@drawable/option_border_edge" />
diff --git a/res/drawable/option_border_edge.xml b/res/drawable/option_border_edge.xml
index 943920e..297acfb 100644
--- a/res/drawable/option_border_edge.xml
+++ b/res/drawable/option_border_edge.xml
@@ -20,7 +20,7 @@
             <stroke
                 android:color="@color/option_border_color"
                 android:width="@dimen/option_selected_border_width" />
-            <corners android:radius="4dp" />
+            <corners android:radius="8dp" />
         </shape>
     </item>
     <item android:state_activated="false">
@@ -28,7 +28,7 @@
             <stroke
                 android:color="@color/option_border_color"
                 android:width="@dimen/option_border_width" />
-            <corners android:radius="4dp" />
+            <corners android:radius="8dp" />
         </shape>
     </item>
 </selector>