Fix splash screen loading on Android

platform/android/java/app/src/com/godot/game/GodotApp.java

@@ -32,9 +32,16 @@ package com.godot.game;
 
 import org.godotengine.godot.FullScreenGodotApp;
 
+import android.os.Bundle;
+
 /**
  * Template activity for Godot Android custom builds.
  * Feel free to extend and modify this class for your custom logic.
  */
 public class GodotApp extends FullScreenGodotApp {
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		setTheme(R.style.GodotAppMainTheme);
+		super.onCreate(savedInstanceState);
+	}
 }