I think getting images will become too complicated, unless you import them from somewhere else, like ashtender. I don't know if my friend will be willing to update GoWM, but I think it might be easier for us to stop using official images and use custom images where needed.
Examples of ideas I had:
Unless something else comes up, I can't think of an easy way to obtain official images, without making them part of the download file (which we obviously won't do). So maybe this can inspire you somehow?
Anyway, I'm so happy with the new version that I'm almost not sad about this image issue