I think it would be a useful feature to be able to add text and other details over images directly in LegendKeeper. There's already an existing request for image captioning a la Wikipedia (which I'll throw a link to in a comment), but a more robust system for adding specific text onto the image, rather than just captioning it for explanation, would be great.

I'm envisioning something like going into a Board-like UI within the image where you can position other elements over/under/around the image and then have the compiled result appear in the page.

Could also be used for titles, subtitles, etc.