title: the notification icon is white in android but works fine in iOS
body: <p>I have been using Unity and firebase messaging for push notification it is working fine with iOS but for android the certain phones are having white box instead of the application icon for phone that is using android 10 but works for android 11. I have tried using custom image also by using transparent png image the same result with all RGB removed</p>
  <pre><code>
      &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
      &lt;manifest xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot; xmlns:tools=&quot;http://schemas.android.com/tools&quot; package=&quot;PACKAGE NAME&quot; android:versionCode=&quot;1&quot; android:versionName=&quot;1.0&quot;&gt;
        &lt;application android:label=&quot;@string/app_name&quot; android:icon=&quot;@drawable/app_icon&quot;&gt;
          &lt;meta-data
              android:name=&quot;com.google.firebase.messaging.default_notification_icon&quot;
              android:resource=&quot;@drawable/small_icon&quot; /&gt;
          &lt;!-- The MessagingUnityPlayerActivity is a class that extends
               UnityPlayerActivity to work around a known issue when receiving
               notification data payloads in the background. --&gt;
          &lt;activity android:name=&quot;com.google.firebase.MessagingUnityPlayerActivity&quot; android:configChanges=&quot;fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen&quot;&gt;
            &lt;intent-filter&gt;
              &lt;action android:name=&quot;android.intent.action.MAIN&quot; /&gt;
              &lt;category android:name=&quot;android.intent.category.LAUNCHER&quot; /&gt;
            &lt;/intent-filter&gt;
            &lt;meta-data android:name=&quot;unityplayer.UnityActivity&quot; android:value=&quot;true&quot; /&gt;
          &lt;/activity&gt;
          &lt;service android:name=&quot;com.google.firebase.messaging.MessageForwardingService&quot; android:permission=&quot;android.permission.BIND_JOB_SERVICE&quot; android:exported=&quot;false&quot;&gt;&lt;/service&gt;
        &lt;/application&gt;
      &lt;/manifest&gt;
  
  </code></pre>