Fixing weird dialog background on versions earlier than Lollipop.

Standardised theme names.
Renamed styles.xml to themes.xml to keep these separate.
Fixes #425.

src/main/AndroidManifest.xml

@@ -15,7 +15,7 @@
         android:icon="@drawable/ic_launcher"
         android:banner="@drawable/banner"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme"
+        android:theme="@style/Theme.Syncthing"
         android:description="@string/app_description"
         android:supportsRtl="true"
         android:installLocation="internalOnly">
@@ -67,7 +67,7 @@
                 android:value="splitActionBarWhenNarrow" />
         </activity>
         <activity android:name=".activities.RestartActivity"
-            android:theme="@style/Translucent"/>
+            android:theme="@style/Theme.Syncthing.Translucent"/>
 
         <service android:name=".syncthing.SyncthingService" />
 

src/main/res/values-v11/styles.xml

@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <!-- DialogTheme produces weird background on 4.4, so we only use it on Lollipop for now. -->
-    <style name="AppTheme" parent="BaseTheme">
-        <item name="android:alertDialogTheme">@style/DialogTheme</item>
-    </style>
-
-    <style name="DialogTheme" parent="Theme.AppCompat.Light.Dialog.Alert">
-        <item name="colorPrimary">@color/primary</item>
-        <item name="colorPrimaryDark">@color/primary_dark</item>
-        <item name="colorAccent">@color/accent</item>
-    </style>
-
-</resources>

src/main/res/values-v21/themes.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <!-- DialogTheme produces weird background on 4.4, so we only use it on Lollipop for now. -->
+    <style name="Theme.Syncthing" parent="Theme.Syncthing.Base">
+        <item name="android:alertDialogTheme">@style/Theme.Syncthing.Dialog</item>
+    </style>
+
+</resources>

src/main/res/values/themes.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
 
-    <style name="BaseTheme" parent="@style/Theme.AppCompat.Light.DarkActionBar">
+    <style name="Theme.Syncthing.Base" parent="@style/Theme.AppCompat.Light.DarkActionBar">
         <item name="colorPrimary">@color/primary</item>
         <item name="colorPrimaryDark">@color/primary_dark</item>
         <item name="colorAccent">@color/accent</item>
@@ -9,9 +9,9 @@
         <item name="android:textColorSecondary">@color/secondary_text</item>
     </style>
 
-    <style name="AppTheme" parent="BaseTheme"/>
+    <style name="Theme.Syncthing" parent="Theme.Syncthing.Base"/>
 
-    <style name="Translucent" parent="AppTheme">
+    <style name="Theme.Syncthing.Translucent">
         <item name="android:windowNoTitle">true</item>
         <item name="android:windowBackground">@android:color/transparent</item>
         <item name="android:colorBackgroundCacheHint">@null</item>
@@ -19,4 +19,10 @@
         <item name="android:windowAnimationStyle">@android:style/Animation</item>
     </style>
 
+    <style name="Theme.Syncthing.Dialog" parent="Theme.AppCompat.Light.Dialog.Alert">
+        <item name="colorPrimary">@color/primary</item>
+        <item name="colorPrimaryDark">@color/primary_dark</item>
+        <item name="colorAccent">@color/accent</item>
+    </style>
+
 </resources>