I seem to be getting an error on save of an image and I wonder if I’m constructing this incorrectly, your code is great and seems to promise exactly what I would like to implement but I’m not sure how to build the notification properly, I was getting build errors for ContentSettings and now that that is resolved it falls over at the save, could be it can’t access the allowed file extensions or something. Probably just my lack of umbraco knowledge shining through