Filters whether to send an email following an automatic background theme update.

$enabled bool

True if theme update notifications are enabled, false otherwise.

$update_results array

The results of theme update tasks.

File: wp-admin/includes/class-wp-automatic-updater.php. View all references

$notifications_enabled = apply_filters( 'auto_theme_update_send_email', true, $update_results['theme'] );