How to change the Push icon and add a cover image to the push notification preview for Android.

This option is available in the “Application” tab of your app editor.

For Push icon, we recommend uploading a white icon with transparency (.png).
However, our system will colorize your icon in white if needed.

Note: If your icon is a square without transparency, the Push icon will be a white square.
The Push icon displays only the shape of your icon.

Example with this icon (which is a .png file with transparency) and a cover image:

Important: if you change the Push icon, your app must be republished.