Given the new notification behavior in SDK 26, I'm using a notification.png icon in the res\drawable folder.
I've set the read-only flag as instructed, but since I'm often moving my dev environment to different machines using Google Drive, the flag sometimes gets reset.
If the RO attribute is missing I noticed that the notification.png file is deleted after each compilation, while the icon.png file does not, even if it's missing the RO also.
Are there any others "do-not-delete" built-in filenames I can use for my notification icon?