Update UI for Storage settings.

Change the text color for the used storage number to colorAccent and increase the
height of the storage bar graph to match that in Memory settings.

Bug: 29417812
Change-Id: I2a2f6a3fb39c4c23e51a8be8e6feefa101d74797

src/com/android/settings/deviceinfo/StorageSummaryPreference.java

@@ -46,6 +46,7 @@ public class StorageSummaryPreference extends Preference {
         if (mPercent != -1) {
             progress.setVisibility(View.VISIBLE);
             progress.setProgress(mPercent);
+            progress.setScaleY(7f);
         } else {
             progress.setVisibility(View.GONE);
         }