Thanks for the reply! I did look into that, and got it mostly working. But exporting symbols to generate an image is expensive/slow. It also has some quirks I'm still trying to understand (once a the plugin is run, and a symbol is imported from a library, exporting/generating an image of that symbol on a subsequent plugin run does not seem to work). Perhaps I'll need to export images and store them on disk to reference instead of directly exporting data each time.