feat(android): branded app icon + native splash screen (Phase 28.8 polish)

android/app/src/main/AndroidManifest.xml

@@ -20,7 +20,8 @@
         android:name=".YarisApp"
         android:allowBackup="false"
         android:fullBackupOnly="false"
-        android:icon="@android:mipmap/sym_def_app_icon"
+        android:icon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher_round"
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/Theme.YarisOBD"
@@ -30,7 +31,7 @@
         <activity
             android:name=".MainActivity"
             android:exported="true"
-            android:theme="@style/Theme.YarisOBD">
+            android:theme="@style/Theme.YarisOBD.Splash">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />

android/app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -4,10 +4,20 @@
     android:height="108dp"
     android:viewportWidth="108"
     android:viewportHeight="108">
+    <!-- Gauge ring -->
     <path
-        android:fillColor="#4CAF50"
+        android:pathData="M54,54m-24,0a24,24 0 1,1 48,0a24,24 0 1,1 -48,0"
-        android:pathData="M54,54m-40,0a40,40 0,1 1,80 0a40,40 0,1 1,-80 0"/>
+        android:strokeColor="#FFFFFF"
+        android:strokeWidth="6"
+        android:fillColor="#00000000" />
+    <!-- Needle -->
     <path
-        android:fillColor="#121212"
+        android:pathData="M54,54L72,38"
-        android:pathData="M40,45 L68,54 L40,63 Z"/>
+        android:strokeColor="#FFFFFF"
+        android:strokeWidth="6"
+        android:strokeLineCap="round" />
+    <!-- Hub -->
+    <path
+        android:pathData="M54,54m-4,0a4,4 0 1,1 8,0a4,4 0 1,1 -8,0"
+        android:fillColor="#FFFFFF" />
 </vector>

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/ic_launcher_background"/>
-    <foreground android:drawable="@color/ic_launcher_foreground"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

android/app/src/main/res/values-v31/themes.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- API 31+ native splash: dark background + white gauge icon. -->
+    <style name="Theme.YarisOBD.Splash" parent="Theme.YarisOBD">
+        <item name="android:windowSplashScreenBackground">#1C1C1E</item>
+        <item name="android:windowSplashScreenAnimatedIcon">@drawable/ic_launcher_foreground</item>
+        <item name="android:windowSplashScreenIconBackgroundColor">#1C1C1E</item>
+    </style>
+</resources>

android/app/src/main/res/values/colors.xml

@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="ic_launcher_background">#121212</color>
+    <color name="ic_launcher_background">#E63946</color>
-    <color name="ic_launcher_foreground">#4CAF50</color>
 </resources>

android/app/src/main/res/values/strings.xml

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="app_name">yaris-obd</string>
+    <string name="app_name">Yaris OBD</string>
 </resources>

android/app/src/main/res/values/themes.xml

@@ -4,4 +4,7 @@
         <item name="android:statusBarColor">@android:color/black</item>
         <item name="android:navigationBarColor">@android:color/black</item>
     </style>
+
+    <!-- Pre-31 fallback: identical to the normal theme (no native splash). -->
+    <style name="Theme.YarisOBD.Splash" parent="Theme.YarisOBD" />
 </resources>