It would be nice to be able to add captions to images in the whiteboard.

I have a "want to draw" whiteboard where I paste reference images, and I would like to attach a url source, but adding a separate text/shape and arrow for it is clunky and breaks the flow, especially since I don't necessarily want to see the link all the time, it's only in case I want to go back to it.

And outside my use case, I'm sure some people would like having access to text descriptions for images that won't load, or accessibility-wise.