station_widget_content.xml: Replace background PNGs wuth XML drawable.

oeffi/res/drawable/appwidget_background.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+
+    <corners android:radius="4dp" />
+    <solid android:color="#ff202020" />
+</shape>

oeffi/res/drawable/appwidget_dark_bg_clickable.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <item android:drawable="@drawable/appwidget_dark_bg_pressed" android:state_pressed="true"/>
-    <item android:drawable="@drawable/appwidget_dark_bg_focused" android:state_enabled="true" android:state_focused="true" android:state_window_focused="true"/>
-    <item android:drawable="@drawable/appwidget_dark_bg"/>
-
-</selector>

oeffi/res/layout/station_widget_content.xml

@@ -3,7 +3,7 @@
     android:id="@+id/station_widget_content"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="@drawable/appwidget_dark_bg_clickable"
+    android:background="@drawable/appwidget_background"
     android:focusable="true"
     android:orientation="vertical" >