FR: Images and/or Text

[Offbeatmammal]

I would love to be able to return an Image rather than text to place on the graph cell/element (my particular use-case is a stacked bar chart)

Along with the source of the image, would be good to be able to specify height/width and position within the graph cell (or instance to allow an image to completely fill the space, or appear along side or above the text caption).