For mozilla-mobile#150 - Sets the base style to allow a plain white b…

…ackground

app/src/main/AndroidManifest.xml

@@ -8,7 +8,7 @@
             android:label="@string/app_name"
             android:roundIcon="@mipmap/ic_launcher_round"
             android:supportsRtl="true"
-            android:theme="@style/AppTheme">
+            android:theme="@style/LightAppTheme">
         <activity android:name=".HomeActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>

app/src/main/res/layout/activity_home.xml

@@ -1,10 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout
+<androidx.constraintlayout.widget.ConstraintLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:tools="http://schemas.android.com/tools"
-        xmlns:app="http://schemas.android.com/apk/res-auto"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         tools:context=".HomeActivity">
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values-v23/styles.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="LightAppTheme" parent="Theme.AppCompat.Light.NoActionBar">
+        <!-- style the statusbar -->
+        <item name="android:statusBarColor">@android:color/transparent</item>
+        <item name="android:windowLightStatusBar">true</item>
+    </style>
+</resources>

app/src/main/res/values-v27/styles.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="LightAppTheme" parent="Theme.AppCompat.Light.NoActionBar">
+        <!-- style the statusbar -->
+        <item name="android:statusBarColor">@android:color/transparent</item>
+        <item name="android:windowLightStatusBar">true</item>
+
+        <!-- Style the navigation bar -->
+        <item name="android:navigationBarColor">@android:color/transparent</item>
+        <item name="android:navigationBarDividerColor">@android:color/black</item>
+        <item name="android:windowLightNavigationBar">true</item>
+    </style>
+</resources>

app/src/main/res/values/styles.xml

@@ -1,11 +1,8 @@
 <resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+    <style name="LightAppTheme" parent="Theme.AppCompat.Light.NoActionBar">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
     </style>
-
 </resources>