Merge PR #925.

Author: AdamVe

android/app/src/main/AndroidManifest.xml

@@ -62,6 +62,10 @@
             android:exported="true"
             android:targetActivity=".MainActivity">
 
+            <meta-data
+                android:name="io.flutter.embedding.android.NormalTheme"
+                android:resource="@style/NormalTheme" />
+
             <intent-filter>
                 <action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
             </intent-filter>