Upgrade project to libgdx 1.12.1

android/res/values/color.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_background_color">#F5A623FF</color>
+</resources>

android/res/values/strings.xml

@@ -1,6 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-
-    <string name="app_name">colorrunner</string>
-
+  <string name="app_name">ColorRunner</string>
 </resources>

android/res/values/styles.xml

@@ -1,12 +1,10 @@
 <resources>
-
     <style name="GdxTheme" parent="android:Theme">
-		<item name="android:windowBackground">@android:color/transparent</item>
+    <item name="android:windowBackground">@android:color/transparent</item>
         <item name="android:colorBackgroundCacheHint">@null</item>
         <item name="android:windowAnimationStyle">@android:style/Animation</item>
         <item name="android:windowNoTitle">true</item>
         <item name="android:windowContentOverlay">@null</item>
         <item name="android:windowFullscreen">true</item>
     </style>
-
 </resources>