Asterisk for Unsaved Images in Dropdown

It's very inconvenient when an action I do and can't undo (baking most commonly) affects an image but I don't know which. Similarly, when blender warns you of unsaved images when trying to close, you might want to make sure it's not an accidental change that you absolutely don't want to crush your source file.

So, let's add an asterisk in the list of images in the dropdown next to images that are pending saving, just like the 'image*' menu has.

This becomes a major problem when you have dozens of images in your file and do a lot of baking with objets with several active materials. What if you overwrote something ???

an other topic that would help but I feel is so minor it doesn't require its own thread would be offering to protect certain images, not only from automatic purging but also from indirect actions like viewport painting and baking