I am looking forward to hearing this.
The cover art for the audio version is done, and will be matching that of the book. When designing the cover, a whole tama (spirit, jewel) was a very important consideration since the stories are all meant from the spirit point of view. Ancestors especially, but there are stories where the living character could be interpreted either as an incarnated spirit... or a woman possessed... depending on the filter used. That state is actually one that I found very interesting to write since I had to hold the dual frame firmly in mind as it needs to be left up to the reader as to which view they take. That story will be particularly interesting to hear whether or not I managed, and if the narrator captures it.
What do the different colors mean? That's for you to figure out.
Meanwhile, it's currently available in text.