Gray circle next to large notification icon?

Question

Im displaying notifications in my app - but for some reason on android version Lolipop its displaying a gray circle next to the large icon like this:

Does anyone have an idea why is this happening?

Here is my code in which I create my notifications:

builder = new NotificationCompat.Builder(context)
                    // Set Icon
                    .setSmallIcon(R.drawable.ic_launcher)
                    .setLargeIcon(icon)
                    // Set Ticker Message
                    .setTicker(message)
                    // Set Title
                    .setContentTitle(message)
                    // Set Text
                    .setContentText(context.getString(R.string.app_name))
                    // Add an Action Button below Notification
                    // .addAction(R.drawable.share,
                    // context.getString(R.string.share), pendingShare)
                    // Set PendingIntent into Notification
                    .setContentIntent(contentIntent)
                    // Dismiss Notification
                    .setAutoCancel(true)
                    .setSound(
                            Uri.parse("android.resource://"
                                    + context.getPackageName()
                                    + "/"
                                    + prefs.getInt(Constants.NOTIF_SOUND,
                                            R.raw.al_affassi_full)));

Answer 1

Your notification icon must follow the notification design from here : iconography notifications

Notification icons must be entirely white. Also, the system may scale down and/or darken the icons.

Edit

try with this image (the image is white and is between the ///)

/// ///